Substance Use
Conditions
Brief summary
The proposed study will provide critical information on Ecological Momentary Assessment (EMA) design characteristics that promote retention in a vulnerable and under-represented population in research-youth experiencing homelessness. The study will use an EMA app to collect substance use, mood, craving, social surroundings, and trauma measures over a 14-day period in youth age 18-24 (n=40) recruited from Star House, a homeless youth drop-in center. Youth will be randomized in 2x2 factorial design (fixed incentive model vs. prize-based model; random assessment 3x vs. 6x per day).
Interventions
BEHAVIORALEcological Momentary Assessment (EMA; Metricwire) Prompts 3x/day
Participants receive 3 EMA survey prompts daily for the duration of the study.
BEHAVIORALEcological Momentary Assessment (EMA; Metricwire) Prompts 6x/day
Participants receive 6 EMA survey prompts daily for the duration of the study.
BEHAVIORALIncentive Structure - fixed
Those assigned to the fixed incentive condition will earn a fixed bonus based on EMA completion (50-74%=$3; 75-89%=$5; ≥90%=$10) each week.
BEHAVIORALIncentive Structure - prize based
Those assigned to the prize-based incentive will be rewarded for high survey completion with increasing numbers of draws depending on their level of response to EMA prompts each week (50-74%=1 draw, 75-89%=2 draws, ≥90%=3 draws). For each draw, individuals will use the EMA app to spin the wheel to see which prize amount they earn. Out of a total of 500 total draws, 50% will be $1, 43.6% will be $3, 6% will be medium prizes ($5), and 0.4% will be a jumbo prize ($90).
Sponsors
Nationwide Children's Hospital
Study design
Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
OTHER
Masking
NONE
Intervention model description
2x2 factorial design (fixed incentive model vs. prize-based model; random assessment 3x vs. 6x per day)
Eligibility
Sex/Gender
ALL
Age
18 Years to 24 Years
Healthy volunteers
No
Inclusion criteria
* currently homeless, defined as lacking a fixed, regular, and adequate nighttime residence. * report any of the following past-month frequencies of substance use (NIDA ASSIST screen) used in prior EMA studies: a) heavy episodic or binge drinking (≥4 drinks per day for women/≥5 drinks for men) ≥2 days per month ; b) marijuana use ≥2 days per week; or c) any illicit drug use.
Exclusion criteria
\-
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Length of Time | Baseline to end of trial (day 14) | Total length of time in days using EMA (range: 1-14 days). Higher values represent greater length of time EMA was used. |
| Percent Completion | Baseline to end of trial (day 14) | Percent of EMA surveys completed (0-100%). Higher values represent a larger percentage of EMA surveys completed. |
Countries
United States
Outcome results
None listed