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Enhancing Adolescent Substance Abuse Treatment

Experimental Mediation Research Aimed at Enhancing Adolescent Substance Abuse Treatment

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03249350
Enrollment
129
Registered
2017-08-15
Start date
2018-04-23
Completion date
2024-07-31
Last updated
2025-11-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Substance Use Disorders

Keywords

Substance Use Disorders, Adolescents, Treatment, Mediation

Brief summary

The ultimate goal of this research is to facilitate rapid enhancement of youth substance abuse treatments by determining the key mechanisms of change (i.e., what to target more intensely to generate better outcomes). This work is critical because current outpatient adolescent substance abuse treatments yield only small to medium effects that diminish once treatment has ended. The proposed modern mediation study will address this serious public health problem by experimentally evaluating the most critical factors causing change in client outcomes during adolescent substance abuse treatment, directing the field to focus treatment efforts on those factors.

Detailed description

Adolescents with substance use disorders (SUD) are at high risk for significant deleterious outcomes. Although several evidence-based practices for adolescent SUD exist, they yield only small to medium effects that rapidly diminish (30-70% 6-month relapse rates). A promising approach for determining how to enhance treatment is experimental mediation research. In contrast to traditional correlational mediation approaches, experimental mediation permits causal inference and is comprised of key steps: (A) Identify the putative mediating variable for a treatment. (B) Enhance the treatment to target that mediator more intensely. (C) Randomize youth to conditions, with the standard and enhanced versions of the treatment targeting different levels of the same mediator. (D) Measure the mediator and outcomes longitudinally. (E) Perform modern mediation analyses, coupled with analyses evaluating causal inference, to determine if changes in the mediator are responsible for changes in outcomes. This experimental test of mediation, focused on causality, facilitates rapid improvement of treatments by specifying change mechanisms to target in order to improve outcomes. These steps will be followed to elucidate the mediating processes in treatment for adolescent SUD, with the ultimate goal of enhancing the strength and durability of SUD treatments. The three most common putative mediating variables in adolescent SUD treatments are parent management, behavioral regulation, and peer relations. For this study, parent management was chosen as the target because it has evidenced the most potential for yielding generalizable change in youth outcomes and also has been shown to indirectly improve youths' behavioral regulation and peer relations. Of existing treatments for adolescent SUD, family-based Contingency Management (CM) was chosen as the treatment to enhance because it is highly amenable to an augmented focus on parenting, is less complex relative to other SUD treatments, and has amassed considerable support in terms of efficacy and dissemination potential. Thus, following experimental mediation steps, youth with SUD will be randomized to receive either standard CM or enhanced CM (i.e., CM+) that targets parenting more intensely. Repeated assessments for 12 months and longitudinal analyses will allow testing of mediating processes. The investigators will examine whether parent management skills mediate the effect of treatment on youth substance use and behavior problems (Aim 1). In addition, the investigators will determine whether parent management skills mediate the effect of treatment on youth behavioral regulation and deviant peer relations (Aim 2). Finally, the investigators will test whether behavioral regulation and deviant peer relations mediate the effect of parent management on youth substance use and behavior problems (Aim 3). Findings could have broad impact across multiple adolescent SUD treatments.

Interventions

BEHAVIORALStandard Contingency Management (CM)

CM utilizes behavior modification & cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components b through d are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.

BEHAVIORALEnhanced Contingency Management (CM+)

The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.

Sponsors

Oregon Social Learning Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
12 Years to 18 Years
Healthy volunteers
No

Inclusion criteria

* Age 12 to 18 years * Presence of current substance use disorder * Availability of a parent/guardian willing to participate

Exclusion criteria

* Actively psychotic, suicidal, or homicidal * Pervasive developmental disorder or metal retardation

Design outcomes

Primary

MeasureTime frameDescription
Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsAny positive urine screens for tetrahydrocannabinol (THC), synthetic THC, amphetamines, opiates, phencyclidine (PCP), cocaine, and/or alcohol metabolites (ethyl glucuronide, ethyl sulfate).

Secondary

MeasureTime frameDescription
Youth Receipt of Required Contingency Management (CM) Treatment Components.Course of treatment (length varied by participant)All treatment sessions were audio-recorded. A random selection of tapes was coded by trained raters to indicate the presence or absence of CM treatment components. Scores on this outcome reflect the proportion of components delivered, with higher scores indicating the presence of more treatment components.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsA 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' discipline activity and the variability in rule enforcement and consequences. Scores range from 6-30. High scores suggest unpredictable enforcement of rules, which can undermine authority and increase behavioral issues. This is measured through parents' self-reports of their own behaviors.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsA 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures positive parenting through the frequency of praise and reinforcement. Scores range from 6-30. High scores reflect the frequent use of praise and rewards, which are associated with better child compliance and emotional well-being. This is measured through parents' self-reports of their own behaviors.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsParent management practices as measured by the Alabama Parenting Questionnaire (APQ) (parent-report). A 10-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' monitoring and supervision of their child's activities and whereabouts. Scores range from 10-50. Higher scores indicate less parental awareness of the child's activities. Elevated scores are associated with an increased risk of delinquency and externalizing behaviors. This is measured through parents' self-reports of their own behaviors.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsA 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' discipline activity and the variability in rule enforcement and consequences. Scores range from 6 -30. High scores suggest unpredictable enforcement of rules, which can undermine authority and increase behavioral issues. This is measured through youths' reports on parents' behaviors.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsA 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures positive parenting through the frequency of praise and reinforcement. Scores range from 6-30. High scores reflect the frequent use of praise and rewards, which are associated with better child compliance and emotional well-being. This is measured through youths' report on parents' behaviors.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsA 10-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' monitoring and supervision of their child's activities and whereabouts. Scores range from 10-50. Higher scores indicate less parental awareness of the child's activities. Elevated scores are associated with an increased risk of delinquency and externalizing behaviors. This is measured through youths' reports on parents' behaviors.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsFrequency of substance use as measured by the Global Appraisal of Individual Needs (youth-report). The Global Appraisal of Individual Needs (GAIN) Frequency Subscale measures the frequency of substance use of 16 different substances over the past 30 days. Scores range from 0 to 100, where higher scores indicate higher frequency of use.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsThe Global Appraisal of Individual Needs (GAIN) Substance Problems Subscale measures the presence of each DSM-V criterion for a substance use disorder and lower severity symptoms. Scores range from 0 to 16, where higher scores indicate the presence of more criterion/symptoms.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsBehavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk-taking as assessed by the sum score on the Drive subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (drive).
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsBehavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk taking as assessed by the sum score on the Fun Seeking subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (fun seeking).
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsYouth problem behaviors as measured by the Child Behavior Checklist (parent-report) and the Youth Self Report. This is a 35-item Subscale of the Child Behavior Checklist (CBCL) measuring externalizing behaviors from the youth's self-report. It assesses outward-directed behaviors such as aggression, defiance, hyperactivity, and rule-breaking. Scores range from 0 to 70, where higher scores indicate the presence of more externalizing behavior problems.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsBehavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk-taking as assessed by the sum score on the Drive subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (drive).
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsBehavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk taking as assessed by the sum score on the Fun Seeking subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (fun seeking).
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsBehavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk-taking as assessed by the sum score on the Reward Responsiveness subscale from the Behavioral Inhibition System and Behavioral Activation System. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 5 to 20. Higher scores equal higher youth behavioral activation (reward responsiveness).
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsYouth performance on computerized Balloon Analogue Risk Task (automatic version) that requires participants to enter the number of times that they want to pump to inflate a computer-generated balloon, with participants earning a point for each pump but losing all of the points if the balloon pops before the selected number of pumps. The mean number of pumps on all trials is reported. Scores range from 0 to 126. Higher scores equal higher youth risk taking behavior.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsBehavioral regulation - inhibitory control as measured by the Early Adolescent Temperament Questionnaire-Revised (youth- and parent-report) and the Go/No Go Task.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsParent report of youth inhibitory control as assessed by the mean score on the Effortful Control factor from the Early Adolescent Temperament Questionnaire. Scores on individual items and factor range from 1=Very false to 5=Very true. Higher scores equal higher youth effortful control.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsYouth performance of youth inhibitory control as assessed by the percent correct on no go trials on computerized go/no-go task.
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsPeer relations (association with peers who engage in delinquent behaviors & prosocial activities) as measured by the Peer Relations Questionnaire (youth- and parent-report).
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsThe Positive Peer Activity Scale of the Pittsburgh Youth Study Interview comprises 10 questions rated on a 4-point scale (0 = none to 4 = all) concerning the proportion of friends of the subject that have engaged in a variety of prosocial activities over the past 30 days. Scores range from 0 to 40, where higher scores indicate a higher proportion of prosocial friends. This is measured from the youth's self-report.
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsThe Positive Peer Activity Scale of the Pittsburgh Youth Study Interview comprises 10 questions rated on a 4-point scale (0 = none to 4 = all) concerning the proportion of friends of the subject that have engaged in a variety of prosocial activities over the past 30 days. Scores range from 0 to 40, where higher scores indicate a higher proportion of prosocial friends. This is measured from the parent's report on youth's friends.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline to 12 monthsBehavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk taking as assessed by the sum score on the Reward Responsiveness subscale from the Behavioral Inhibition System and Behavioral Activation System. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 5 to 20. Higher scores equal higher youth behavioral activation (reward responsiveness).

Countries

United States

Participant flow

Pre-assignment details

Study participants include adolescents aged 12-18 years with substance use disorders. All 129 adolescents enrolled in the study met the inclusion criteria and were randomized to treatment. Only adolescents were considered enrolled in the study.

Participants by arm

ArmCount
Standard Contingency Management (CM)
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification & cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components b through d are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
66
Enhanced Contingency Management (CM+)
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
63
Total129

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyParticipant did not initiate treatment58

Baseline characteristics

CharacteristicStandard Contingency Management (CM)TotalEnhanced Contingency Management (CM+)
Age, Continuous14.76 years
STANDARD_DEVIATION 1.49
14.87 years
STANDARD_DEVIATION 1.43
14.98 years
STANDARD_DEVIATION 1.36
Alabama Parenting Questionnaire (APQ) Corporal Punishment - Parent1.95 units on a scale
STANDARD_DEVIATION 1.34
2.03 units on a scale
STANDARD_DEVIATION 1.29
2.11 units on a scale
STANDARD_DEVIATION 1.25
Alabama Parenting Questionnaire (APQ) Corporal Punishment - Youth5.11 units on a scale
STANDARD_DEVIATION 1.84
5.26 units on a scale
STANDARD_DEVIATION 1.7
5.43 units on a scale
STANDARD_DEVIATION 1.54
Alabama Parenting Questionnaire (APQ) Inconsistent Discipline- Parent10.09 units on a scale
STANDARD_DEVIATION 4.6
10.35 units on a scale
STANDARD_DEVIATION 4.32
10.62 units on a scale
STANDARD_DEVIATION 4.03
Alabama Parenting Questionnaire (APQ) Inconsistent Discipline- Youth14.8 units on a scale
STANDARD_DEVIATION 5.07
14.71 units on a scale
STANDARD_DEVIATION 4.77
14.6 units on a scale
STANDARD_DEVIATION 4.48
Alabama Parenting Questionnaire (APQ) Involvement - Parent24.85 units on a scale
STANDARD_DEVIATION 4.89
25.15 units on a scale
STANDARD_DEVIATION 5
25.46 units on a scale
STANDARD_DEVIATION 5.13
Alabama Parenting Questionnaire (APQ) Involvement - Youth30.53 units on a scale
STANDARD_DEVIATION 7.38
30.66 units on a scale
STANDARD_DEVIATION 6.98
30.79 units on a scale
STANDARD_DEVIATION 6.58
Alabama Parenting Questionnaire (APQ) Poor Monitoring - Parent14.35 units on a scale
STANDARD_DEVIATION 6.26
14.61 units on a scale
STANDARD_DEVIATION 6.35
14.89 units on a scale
STANDARD_DEVIATION 6.48
Alabama Parenting Questionnaire (APQ) Poor Monitoring - Youth25.15 units on a scale
STANDARD_DEVIATION 6.42
24.9 units on a scale
STANDARD_DEVIATION 6.38
24.63 units on a scale
STANDARD_DEVIATION 6.38
Alabama Parenting Questionnaire (APQ) Positive Parenting - Parent18.09 units on a scale
STANDARD_DEVIATION 3.28
17.64 units on a scale
STANDARD_DEVIATION 3.5
17.16 units on a scale
STANDARD_DEVIATION 3.69
Alabama Parenting Questionnaire (APQ) Positive Parenting - Youth19.82 units on a scale
STANDARD_DEVIATION 4.89
19.7 units on a scale
STANDARD_DEVIATION 4.69
19.57 units on a scale
STANDARD_DEVIATION 4.51
Any Positive Urine Drug Screen0.68 proportion of participants0.71 proportion of participants0.73 proportion of participants
Balloon Analog Risk Task (BART) Number of Pumps48.49 pumps
STANDARD_DEVIATION 12.17
50.05 pumps
STANDARD_DEVIATION 12.79
51.72 pumps
STANDARD_DEVIATION 13.33
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Drive - Parent11.91 units on a scale
STANDARD_DEVIATION 2.05
11.68 units on a scale
STANDARD_DEVIATION 2.34
11.44 units on a scale
STANDARD_DEVIATION 2.6
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Drive - Youth11.3 units on a scale
STANDARD_DEVIATION 2.41
11.25 units on a scale
STANDARD_DEVIATION 2.36
11.19 units on a scale
STANDARD_DEVIATION 2.31
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Fun Seeking - Parent12 units on a scale
STANDARD_DEVIATION 1.72
11.92 units on a scale
STANDARD_DEVIATION 1.83
11.84 units on a scale
STANDARD_DEVIATION 1.95
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Fun Seeking - Youth11.86 units on a scale
STANDARD_DEVIATION 1.8
12.16 units on a scale
STANDARD_DEVIATION 1.88
12.46 units on a scale
STANDARD_DEVIATION 1.92
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Reward Responsiveness - Parent15.47 units on a scale
STANDARD_DEVIATION 2.19
15.26 units on a scale
STANDARD_DEVIATION 2.28
15.03 units on a scale
STANDARD_DEVIATION 2.36
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Reward Responsiveness - Youth15.35 units on a scale
STANDARD_DEVIATION 2.43
15.38 units on a scale
STANDARD_DEVIATION 2.37
15.41 units on a scale
STANDARD_DEVIATION 2.32
Child Behavior Checklist (CBCL) - Externalizing Parent Report31.95 units on a scale
STANDARD_DEVIATION 15.18
30.04 units on a scale
STANDARD_DEVIATION 14.65
28.03 units on a scale
STANDARD_DEVIATION 13.91
Child Behavior Checklist (CBCL) - Externalizing Youth Report22.88 units on a scale
STANDARD_DEVIATION 10.19
23.72 units on a scale
STANDARD_DEVIATION 10.63
24.6 units on a scale
STANDARD_DEVIATION 11.09
Early Adolescent Temperament Questionnaire (EATQ) Effortful Control Factor - Parent2.4 units on a scale
STANDARD_DEVIATION 0.6
2.42 units on a scale
STANDARD_DEVIATION 0.57
2.44 units on a scale
STANDARD_DEVIATION 0.54
Early Adolescent Temperament Questionnaire (EATQ) Effortful Control Factor - Youth2.96 units on a scale
STANDARD_DEVIATION 0.63
2.88 units on a scale
STANDARD_DEVIATION 0.59
2.8 units on a scale
STANDARD_DEVIATION 0.53
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants24 Participants16 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
57 Participants104 Participants47 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Global Appraisal of Individual Needs (GAIN) Substance Dependence3.15 units on a scale
STANDARD_DEVIATION 2.33
3.21 units on a scale
STANDARD_DEVIATION 2.4
3.27 units on a scale
STANDARD_DEVIATION 2.49
Global Appraisal of Individual Needs (GAIN) Substance Frequency22.89 units on a scale
STANDARD_DEVIATION 17.37
22.4 units on a scale
STANDARD_DEVIATION 17.3
21.9 units on a scale
STANDARD_DEVIATION 17.42
Global Appraisal of Individual Needs (GAIN) Substance Problem6.73 units on a scale
STANDARD_DEVIATION 4.33
6.95 units on a scale
STANDARD_DEVIATION 4.52
7.19 units on a scale
STANDARD_DEVIATION 4.73
Go-No-Go Percent Correct0.74 percent correct
STANDARD_DEVIATION 0.15
0.74 percent correct
STANDARD_DEVIATION 0.15
0.74 percent correct
STANDARD_DEVIATION 0.15
Peer Delinquency15.42 units on a scale
STANDARD_DEVIATION 13.75
15.13 units on a scale
STANDARD_DEVIATION 12.33
14.83 units on a scale
STANDARD_DEVIATION 10.74
Positive Peer Activity - Parent Report9.8 units on a scale
STANDARD_DEVIATION 5.29
10.15 units on a scale
STANDARD_DEVIATION 5.93
10.51 units on a scale
STANDARD_DEVIATION 6.56
Positive Peer Activity - Youth Report16.62 units on a scale
STANDARD_DEVIATION 5.92
15.91 units on a scale
STANDARD_DEVIATION 12.33
15.16 units on a scale
STANDARD_DEVIATION 5.94
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants5 Participants2 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants3 Participants2 Participants
Race (NIH/OMB)
More than one race
1 Participants5 Participants4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants4 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
White
58 Participants110 Participants52 Participants
Region of Enrollment
United States
66 participants129 participants63 participants
Sex: Female, Male
Female
24 Participants50 Participants26 Participants
Sex: Female, Male
Male
42 Participants79 Participants37 Participants
Total Positive Urine Drug Screen0.82 count of positive screens
STANDARD_DEVIATION 0.72
0.83 count of positive screens
STANDARD_DEVIATION 0.69
0.84 count of positive screens
STANDARD_DEVIATION 0.65

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
3 / 660 / 63
other
Total, other adverse events
7 / 665 / 63
serious
Total, serious adverse events
7 / 667 / 63

Outcome results

Primary

Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).

Any positive urine screens for tetrahydrocannabinol (THC), synthetic THC, amphetamines, opiates, phencyclidine (PCP), cocaine, and/or alcohol metabolites (ethyl glucuronide, ethyl sulfate).

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline timepoint0.68 positive test per timepointStandard Error 0.47
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months0.60 positive test per timepointStandard Error 0.49
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months0.51 positive test per timepointStandard Error 0.51
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months0.50 positive test per timepointStandard Error 0.51
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months0.53 positive test per timepointStandard Error 0.51
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months0.44 positive test per timepointStandard Error 0.5
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months0.37 positive test per timepointStandard Error 0.49
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline timepoint0.73 positive test per timepointStandard Error 0.45
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months0.54 positive test per timepointStandard Error 0.51
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months0.55 positive test per timepointStandard Error 0.5
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months0.45 positive test per timepointStandard Error 0.51
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months0.41 positive test per timepointStandard Error 0.5
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.49Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).

A 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' discipline activity and the variability in rule enforcement and consequences. Scores range from 6-30. High scores suggest unpredictable enforcement of rules, which can undermine authority and increase behavioral issues. This is measured through parents' self-reports of their own behaviors.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent10.09 score on a scaleStandard Deviation 4.6
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent9.63 score on a scaleStandard Deviation 4.08
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent9.7 score on a scaleStandard Deviation 4.93
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent9.55 score on a scaleStandard Deviation 4.52
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent8.07 score on a scaleStandard Deviation 4.52
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent9.48 score on a scaleStandard Deviation 4.27
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent7.56 score on a scaleStandard Deviation 3.91
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent10.62 score on a scaleStandard Deviation 4.03
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent7.93 score on a scaleStandard Deviation 3.67
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent9.27 score on a scaleStandard Deviation 3.59
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent7.4 score on a scaleStandard Deviation 3.83
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent9.11 score on a scaleStandard Deviation 4.37
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.09Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).

A 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' discipline activity and the variability in rule enforcement and consequences. Scores range from 6 -30. High scores suggest unpredictable enforcement of rules, which can undermine authority and increase behavioral issues. This is measured through youths' reports on parents' behaviors.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth14.8 score on a scaleStandard Deviation 5.07
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth14.37 score on a scaleStandard Deviation 4.56
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth13.58 score on a scaleStandard Deviation 4.92
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth13.09 score on a scaleStandard Deviation 4.75
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth12.74 score on a scaleStandard Deviation 5.24
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth13.19 score on a scaleStandard Deviation 5.59
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth13.09 score on a scaleStandard Deviation 3.87
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth14.6 score on a scaleStandard Deviation 4.48
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth12.65 score on a scaleStandard Deviation 4.12
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth13.63 score on a scaleStandard Deviation 4.28
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth12.69 score on a scaleStandard Deviation 3.49
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth13.56 score on a scaleStandard Deviation 3.47
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.06Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

Parent management practices as measured by the Alabama Parenting Questionnaire (APQ) (parent-report). A 10-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' monitoring and supervision of their child's activities and whereabouts. Scores range from 10-50. Higher scores indicate less parental awareness of the child's activities. Elevated scores are associated with an increased risk of delinquency and externalizing behaviors. This is measured through parents' self-reports of their own behaviors.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent14.29 score on a scaleStandard Deviation 5.96
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent13.6 score on a scaleStandard Deviation 7.44
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent11.83 score on a scaleStandard Deviation 6.01
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent14.35 score on a scaleStandard Deviation 6.26
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent13.09 score on a scaleStandard Deviation 7.07
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent13.59 score on a scaleStandard Deviation 6.69
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent12.69 score on a scaleStandard Deviation 6.92
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent14.89 score on a scaleStandard Deviation 6.48
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent14.73 score on a scaleStandard Deviation 7.28
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent14.3 score on a scaleStandard Deviation 7.39
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent12.03 score on a scaleStandard Deviation 6.27
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent13.02 score on a scaleStandard Deviation 6.02
Comparison: APQ - Poor Monitoring - Parent Report Mixed effects regression model tested for between-group differences in change over time.p-value: 0.88Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

A 10-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' monitoring and supervision of their child's activities and whereabouts. Scores range from 10-50. Higher scores indicate less parental awareness of the child's activities. Elevated scores are associated with an increased risk of delinquency and externalizing behaviors. This is measured through youths' reports on parents' behaviors.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth25.15 score on a scaleStandard Deviation 6.42
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth23.04 score on a scaleStandard Deviation 6.43
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth21.98 score on a scaleStandard Deviation 6.27
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth21.34 score on a scaleStandard Deviation 6.81
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth21.38 score on a scaleStandard Deviation 6.76
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth22.46 score on a scaleStandard Deviation 7.5
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth23.28 score on a scaleStandard Deviation 7.3
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth24.63 score on a scaleStandard Deviation 6.38
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth21.15 score on a scaleStandard Deviation 6.25
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth21.59 score on a scaleStandard Deviation 6.87
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth22.46 score on a scaleStandard Deviation 7.02
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth22.69 score on a scaleStandard Deviation 7.04
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.03Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

A 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures positive parenting through the frequency of praise and reinforcement. Scores range from 6-30. High scores reflect the frequent use of praise and rewards, which are associated with better child compliance and emotional well-being. This is measured through parents' self-reports of their own behaviors.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent18.09 Scores on a scaleStandard Deviation 3.28
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent18.45 Scores on a scaleStandard Deviation 3.85
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent18.27 Scores on a scaleStandard Deviation 3.72
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent17.66 Scores on a scaleStandard Deviation 4.02
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent18.22 Scores on a scaleStandard Deviation 3.99
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent18.55 Scores on a scaleStandard Deviation 3.27
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent18.15 Scores on a scaleStandard Deviation 3.52
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent17.48 Scores on a scaleStandard Deviation 3.17
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent18.05 Scores on a scaleStandard Deviation 3.22
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent17.16 Scores on a scaleStandard Deviation 3.69
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent18.14 Scores on a scaleStandard Deviation 4.27
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent17.06 Scores on a scaleStandard Deviation 3.62
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.95Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

A 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures positive parenting through the frequency of praise and reinforcement. Scores range from 6-30. High scores reflect the frequent use of praise and rewards, which are associated with better child compliance and emotional well-being. This is measured through youths' report on parents' behaviors.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth19.82 score on a scaleStandard Deviation 4.89
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth18.93 score on a scaleStandard Deviation 5.32
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth19.85 score on a scaleStandard Deviation 5.09
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth19.83 score on a scaleStandard Deviation 5.48
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth19.26 score on a scaleStandard Deviation 5.68
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth19.19 score on a scaleStandard Deviation 5.39
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth20.13 score on a scaleStandard Deviation 5.45
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth19.57 score on a scaleStandard Deviation 4.51
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth19.79 score on a scaleStandard Deviation 5.08
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth19.59 score on a scaleStandard Deviation 5.36
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth19.69 score on a scaleStandard Deviation 5.28
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth19.41 score on a scaleStandard Deviation 4.63
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.5Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).

Peer relations (association with peers who engage in delinquent behaviors & prosocial activities) as measured by the Peer Relations Questionnaire (youth- and parent-report).

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months9.89 score on a scaleStandard Error 9.44
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline15.42 score on a scaleStandard Error 13.75
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months8.06 score on a scaleStandard Error 7.59
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months9.38 score on a scaleStandard Error 9.8
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months9.45 score on a scaleStandard Error 12.56
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months8.8 score on a scaleStandard Error 8.29
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months7.43 score on a scaleStandard Error 8.71
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline14.83 score on a scaleStandard Error 10.74
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months10.06 score on a scaleStandard Error 10.97
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months11.41 score on a scaleStandard Error 14.28
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months8.88 score on a scaleStandard Error 10.38
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months9.91 score on a scaleStandard Error 11.75
Comparison: Peer Delinquencyp-value: 0.23Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

The Positive Peer Activity Scale of the Pittsburgh Youth Study Interview comprises 10 questions rated on a 4-point scale (0 = none to 4 = all) concerning the proportion of friends of the subject that have engaged in a variety of prosocial activities over the past 30 days. Scores range from 0 to 40, where higher scores indicate a higher proportion of prosocial friends. This is measured from the parent's report on youth's friends.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent9.8 score on a scaleStandard Deviation 5.29
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent10.41 score on a scaleStandard Deviation 5.22
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent11.14 score on a scaleStandard Deviation 6.04
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent10.88 score on a scaleStandard Deviation 5.65
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent11.4 score on a scaleStandard Deviation 4.4
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent12.18 score on a scaleStandard Deviation 7.15
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent13.90 score on a scaleStandard Deviation 8.85
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent10.51 score on a scaleStandard Deviation 6.56
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent12.24 score on a scaleStandard Deviation 7.02
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent11.4 score on a scaleStandard Deviation 8.19
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent14.39 score on a scaleStandard Deviation 7.4
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent11.0 score on a scaleStandard Deviation 7.4
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.31Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

The Positive Peer Activity Scale of the Pittsburgh Youth Study Interview comprises 10 questions rated on a 4-point scale (0 = none to 4 = all) concerning the proportion of friends of the subject that have engaged in a variety of prosocial activities over the past 30 days. Scores range from 0 to 40, where higher scores indicate a higher proportion of prosocial friends. This is measured from the youth's self-report.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth17.97 score on a scaleStandard Deviation 6.5
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth17.11 score on a scaleStandard Deviation 5.66
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth16.62 score on a scaleStandard Deviation 5.92
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth16.66 score on a scaleStandard Deviation 5.95
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth17.37 score on a scaleStandard Deviation 6.02
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth17.2 score on a scaleStandard Deviation 6.01
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth16.0 score on a scaleStandard Deviation 5.63
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth16.28 score on a scaleStandard Deviation 7.12
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth18.19 score on a scaleStandard Deviation 7.38
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth15.71 score on a scaleStandard Deviation 5.51
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth15.16 score on a scaleStandard Deviation 5.94
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth16.76 score on a scaleStandard Deviation 6.16
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.73Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

Parent report of youth inhibitory control as assessed by the mean score on the Effortful Control factor from the Early Adolescent Temperament Questionnaire. Scores on individual items and factor range from 1=Very false to 5=Very true. Higher scores equal higher youth effortful control.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent2.4 score on a scaleStandard Deviation 0.6
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent2.47 score on a scaleStandard Deviation 0.62
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent2.45 score on a scaleStandard Deviation 0.59
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent2.38 score on a scaleStandard Deviation 0.59
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent2.42 score on a scaleStandard Deviation 0.6
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent2.48 score on a scaleStandard Deviation 0.61
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent2.68 score on a scaleStandard Deviation 0.66
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent2.44 score on a scaleStandard Deviation 0.54
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent2.59 score on a scaleStandard Deviation 0.59
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent2.54 score on a scaleStandard Deviation 0.56
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent2.73 score on a scaleStandard Deviation 0.72
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent2.55 score on a scaleStandard Deviation 0.6
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.99Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).

Behavioral regulation - inhibitory control as measured by the Early Adolescent Temperament Questionnaire-Revised (youth- and parent-report) and the Go/No Go Task.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth2.96 score on a scaleStandard Deviation 0.63
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth3.0 score on a scaleStandard Deviation 0.47
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth3.01 score on a scaleStandard Deviation 0.56
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth3.04 score on a scaleStandard Deviation 0.48
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth3.12 score on a scaleStandard Deviation 0.56
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth3.17 score on a scaleStandard Deviation 0.56
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth3.07 score on a scaleStandard Deviation 0.45
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth2.8 score on a scaleStandard Deviation 0.53
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth3.06 score on a scaleStandard Deviation 0.56
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth2.92 score on a scaleStandard Deviation 0.57
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth3.03 score on a scaleStandard Deviation 0.5
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth3.0 score on a scaleStandard Deviation 0.52
Comparison: EATQ Effortful Control - Youth Report Mixed effects regression model tested for between-group differences in change over time.p-value: 0.11Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).

Youth performance of youth inhibitory control as assessed by the percent correct on no go trials on computerized go/no-go task.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline0.74 percent correctStandard Deviation 0.15
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months0.75 percent correctStandard Deviation 0.15
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months0.73 percent correctStandard Deviation 0.14
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months0.75 percent correctStandard Deviation 0.14
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months0.77 percent correctStandard Deviation 0.13
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months0.73 percent correctStandard Deviation 0.15
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months0.75 percent correctStandard Deviation 0.14
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline0.74 percent correctStandard Deviation 0.15
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months0.72 percent correctStandard Deviation 0.17
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months0.71 percent correctStandard Deviation 0.16
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months0.76 percent correctStandard Deviation 0.11
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months0.73 percent correctStandard Deviation 0.15
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.82Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).

Youth performance on computerized Balloon Analogue Risk Task (automatic version) that requires participants to enter the number of times that they want to pump to inflate a computer-generated balloon, with participants earning a point for each pump but losing all of the points if the balloon pops before the selected number of pumps. The mean number of pumps on all trials is reported. Scores range from 0 to 126. Higher scores equal higher youth risk taking behavior.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months51.29 pumpsStandard Deviation 10.3
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline48.49 pumpsStandard Deviation 12.17
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months49.88 pumpsStandard Deviation 11.85
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months48.35 pumpsStandard Deviation 10.37
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months54.02 pumpsStandard Deviation 14.9
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months49.75 pumpsStandard Deviation 13.67
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months53.90 pumpsStandard Deviation 13.13
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months53.86 pumpsStandard Deviation 11.41
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months56.29 pumpsStandard Deviation 14.46
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline51.72 pumpsStandard Deviation 13.33
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months52.09 pumpsStandard Deviation 13.92
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months53.14 pumpsStandard Deviation 11.71
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.06Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk-taking as assessed by the sum score on the Drive subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (drive).

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent11.19 score on a scaleStandard Deviation 2.05
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent11.92 score on a scaleStandard Deviation 2.5
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent11.93 score on a scaleStandard Deviation 2.87
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent12.02 score on a scaleStandard Deviation 2.59
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent12.05 score on a scaleStandard Deviation 2.26
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent12.09 score on a scaleStandard Deviation 1.91
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent11.64 score on a scaleStandard Deviation 2.48
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent11.44 score on a scaleStandard Deviation 2.6
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent11.51 score on a scaleStandard Deviation 2.75
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent11.4 score on a scaleStandard Deviation 2.53
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent11.19 score on a scaleStandard Deviation 2.42
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent11.48 score on a scaleStandard Deviation 2.77
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.3Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk-taking as assessed by the sum score on the Drive subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (drive).

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth11.3 score on a scaleStandard Deviation 2.41
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth11.17 score on a scaleStandard Deviation 2.12
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth11.23 score on a scaleStandard Deviation 2.01
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth10.8 score on a scaleStandard Deviation 2.4
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth10.91 score on a scaleStandard Deviation 2.34
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth11.37 score on a scaleStandard Deviation 1.96
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth11.16 score on a scaleStandard Deviation 2.17
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth11.19 score on a scaleStandard Deviation 2.31
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth10.91 score on a scaleStandard Deviation 2.3
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth11.02 score on a scaleStandard Deviation 2.41
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth10.82 score on a scaleStandard Deviation 2.14
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth11.09 score on a scaleStandard Deviation 2.43
Comparison: BISBAS Drive - Youth Report. Mixed effects regression model tested for between-group differences in change over time.p-value: 0.31Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk taking as assessed by the sum score on the Fun Seeking subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (fun seeking).

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent12.00 score on a scaleStandard Deviation 1.72
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent11.8 score on a scaleStandard Deviation 2.12
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent12.16 score on a scaleStandard Deviation 2.01
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent12.38 score on a scaleStandard Deviation 1.85
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent12.45 score on a scaleStandard Deviation 2.12
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent11.93 score on a scaleStandard Deviation 2.16
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent11.64 score on a scaleStandard Deviation 1.78
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent11.84 score on a scaleStandard Deviation 1.95
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent11.49 score on a scaleStandard Deviation 2.15
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent11.54 score on a scaleStandard Deviation 2.16
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent11.64 score on a scaleStandard Deviation 1.76
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent11.86 score on a scaleStandard Deviation 2.21
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.7Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk taking as assessed by the sum score on the Fun Seeking subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (fun seeking).

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth12.04 score on a scaleStandard Deviation 2.03
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth11.86 score on a scaleStandard Deviation 1.8
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth12.03 score on a scaleStandard Deviation 2.02
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth11.57 score on a scaleStandard Deviation 2.4
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth11.97 score on a scaleStandard Deviation 2.28
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth12.03 score on a scaleStandard Deviation 1.5
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth12.34 score on a scaleStandard Deviation 1.54
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth12.41 score on a scaleStandard Deviation 1.99
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth12.46 score on a scaleStandard Deviation 1.92
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth12.15 score on a scaleStandard Deviation 1.98
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth12.53 score on a scaleStandard Deviation 1.94
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth12.31 score on a scaleStandard Deviation 1.75
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.35Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk-taking as assessed by the sum score on the Reward Responsiveness subscale from the Behavioral Inhibition System and Behavioral Activation System. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 5 to 20. Higher scores equal higher youth behavioral activation (reward responsiveness).

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent15.47 score on a scaleStandard Deviation 2.19
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent15.8 score on a scaleStandard Deviation 2.08
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent16.1 score on a scaleStandard Deviation 2.21
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent15.29 score on a scaleStandard Deviation 2.05
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent15.55 score on a scaleStandard Deviation 2.26
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent15.98 score on a scaleStandard Deviation 2.14
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Parent15.62 score on a scaleStandard Deviation 1.91
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Parent15.34 score on a scaleStandard Deviation 2.08
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Parent15.03 score on a scaleStandard Deviation 2.36
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Parent15.31 score on a scaleStandard Deviation 1.8
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Parent15.09 score on a scaleStandard Deviation 2.12
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Parent15.13 score on a scaleStandard Deviation 2.03
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.89Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk taking as assessed by the sum score on the Reward Responsiveness subscale from the Behavioral Inhibition System and Behavioral Activation System. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 5 to 20. Higher scores equal higher youth behavioral activation (reward responsiveness).

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth15.35 score on a scaleStandard Deviation 2.43
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth15.63 score on a scaleStandard Deviation 2.38
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth15.48 score on a scaleStandard Deviation 2.24
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth14.51 score on a scaleStandard Deviation 3.02
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth15.2 score on a scaleStandard Deviation 2.68
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth15.63 score on a scaleStandard Deviation 2.05
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months - Youth15.88 score on a scaleStandard Deviation 1.81
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline - Youth15.41 score on a scaleStandard Deviation 2.32
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months - Youth15.44 score on a scaleStandard Deviation 1.89
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months - Youth15.26 score on a scaleStandard Deviation 1.95
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months - Youth15.23 score on a scaleStandard Deviation 1.47
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months - Youth15.69 score on a scaleStandard Deviation 1.97
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.13Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).

Youth problem behaviors as measured by the Child Behavior Checklist (parent-report) and the Youth Self Report. This is a 35-item Subscale of the Child Behavior Checklist (CBCL) measuring externalizing behaviors from the youth's self-report. It assesses outward-directed behaviors such as aggression, defiance, hyperactivity, and rule-breaking. Scores range from 0 to 70, where higher scores indicate the presence of more externalizing behavior problems.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline22.88 score on a scaleStandard Deviation 10.19
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).2 Months18.07 score on a scaleStandard Deviation 11.09
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).4 Months17.05 score on a scaleStandard Deviation 9.94
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).6 Months16.26 score on a scaleStandard Deviation 8.97
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).9 Months16.06 score on a scaleStandard Deviation 9.02
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).12 Months15.82 score on a scaleStandard Deviation 10.89
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).9 Months13.59 score on a scaleStandard Deviation 11.45
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline24.6 score on a scaleStandard Deviation 11.09
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).6 Months15.06 score on a scaleStandard Deviation 9.79
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).2 Months19.15 score on a scaleStandard Deviation 10.35
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).12 Months14.4 score on a scaleStandard Deviation 11.07
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).4 Months16.53 score on a scaleStandard Deviation 11.23
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.92Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).

The Global Appraisal of Individual Needs (GAIN) Substance Problems Subscale measures the presence of each DSM-V criterion for a substance use disorder and lower severity symptoms. Scores range from 0 to 16, where higher scores indicate the presence of more criterion/symptoms.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline6.73 score on a scaleStandard Deviation 4.33
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months3.91 score on a scaleStandard Deviation 3.94
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months3.33 score on a scaleStandard Deviation 3.89
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months2.51 score on a scaleStandard Deviation 3.17
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months3.14 score on a scaleStandard Deviation 3.87
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months1.95 score on a scaleStandard Deviation 2.79
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months1.59 score on a scaleStandard Deviation 2.93
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline7.19 score on a scaleStandard Deviation 4.73
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months2.88 score on a scaleStandard Deviation 3.73
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months3.28 score on a scaleStandard Deviation 3.79
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months1.43 score on a scaleStandard Deviation 2.36
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months2.06 score on a scaleStandard Deviation 3.17
Comparison: Mixed effects regression model tested for between-group differences in change over time.p-value: 0.89Mixed Models Analysis
Secondary

Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).

Frequency of substance use as measured by the Global Appraisal of Individual Needs (youth-report). The Global Appraisal of Individual Needs (GAIN) Frequency Subscale measures the frequency of substance use of 16 different substances over the past 30 days. Scores range from 0 to 100, where higher scores indicate higher frequency of use.

Time frame: Baseline to 12 months

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline22.89 score on a scaleStandard Error 17.37
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months13.05 score on a scaleStandard Error 16.09
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months12.18 score on a scaleStandard Error 16.94
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months11.89 score on a scaleStandard Error 15.11
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months12.85 score on a scaleStandard Error 15.63
Standard Contingency Management (CM)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months13.83 score on a scaleStandard Error 18.76
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).9 months8.06 score on a scaleStandard Error 14.43
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).Baseline21.9 score on a scaleStandard Error 17.42
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).6 months11.15 score on a scaleStandard Error 12.44
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).2 months14.51 score on a scaleStandard Error 15.88
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).12 months7.51 score on a scaleStandard Error 11.88
Enhanced Contingency Management (CM+)Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).4 months10.48 score on a scaleStandard Error 15.04
Comparison: GAIN - Substance Frequency Mixed effects regression model tested for between-group differences in change over time.p-value: 0.54Mixed Models Analysis
Secondary

Youth Receipt of Required Contingency Management (CM) Treatment Components.

All treatment sessions were audio-recorded. A random selection of tapes was coded by trained raters to indicate the presence or absence of CM treatment components. Scores on this outcome reflect the proportion of components delivered, with higher scores indicating the presence of more treatment components.

Time frame: Course of treatment (length varied by participant)

ArmMeasureGroupValue (MEAN)Dispersion
Standard Contingency Management (CM)Youth Receipt of Required Contingency Management (CM) Treatment Components.Cognitive Behavioral Components0.16 proportion of components receivedStandard Error 0.01
Standard Contingency Management (CM)Youth Receipt of Required Contingency Management (CM) Treatment Components.Behavioral Modification Components0.33 proportion of components receivedStandard Error 0.01
Enhanced Contingency Management (CM+)Youth Receipt of Required Contingency Management (CM) Treatment Components.Cognitive Behavioral Components0.11 proportion of components receivedStandard Error 0.01
Enhanced Contingency Management (CM+)Youth Receipt of Required Contingency Management (CM) Treatment Components.Behavioral Modification Components0.37 proportion of components receivedStandard Error 0.01
Comparison: Cognitive Behavioral Componentsp-value: <0.001ANOVA
Comparison: Behavioral Modification Componentsp-value: 0.08ANOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026