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Online Bullying Bystander Intervention for Middle Schools Phase II

Translating an In-Person Brief, Bystander Bullying Intervention (STAC) to a Technology-Based - Phase II

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05572398
Acronym
STACII
Enrollment
613
Registered
2022-10-07
Start date
2022-05-26
Completion date
2024-11-18
Last updated
2026-02-24

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

Conditions

Adolescent, Bullying, Mental Health, Technology

Brief summary

School interventions to reduce bullying can be effective but also require substantial time and resources. Online technologies have the potential to deliver effective bullying interventions to a large number of middle school students for less cost. The feasibility of delivering the effective STAC bullying intervention through a mobile web app will be tested using focus groups with middle school students and development and usability testing and the efficacy of the program will be tested using a randomized controlled trial.

Detailed description

While studies support the efficacy of comprehensive, school-wide interventions in reducing bullying, these types of programs can require significant time and financial resources for implementation, resulting in barriers to providing school-based bullying prevention, especially in low-income and rural communities. Additionally, although training bystanders to act as "defenders" on behalf of targets of bullying is an important intervention component, few programs include this as part of their comprehensive strategy. Brief programs that focus on bystander training and require fewer resources are needed to reduce bullying and its negative consequences. The PI (Dr. Midgett) developed STAC, a brief, stand-alone bullying bystander intervention for middle school students, to reduce bullying and mental health risks for bystanders. Brief, in-person programs, however, still pose implementation barrier such as training school personnel, providing external support, and not allowing for large groups of students to be trained at the same time. For this project, the investigators propose to develop a technology-based STAC intervention (STAC-T) that will allow students to customize their experience by selecting avatars and bullying scenarios based on our previous studies conducted in a range of middle schools, including those in low-income and rural communities. The investigators will also incorporate an assessment and personalized feedback component to promote behavior change. The innovative, user-centered design proposed will be inherently sensitive to cultural needs of students and identify personally-appropriate strategies. The specific aims of this application include building the program leveraging our prior work and expertise of an external advisory board, usability and effectiveness testing with middle school students and stakeholders to evaluate feasibility, and testing the efficacy of the program with a randomized controlled trial. The technology-based platform will increase the overall reach, impact, and sustainability of the STAC intervention for bullying prevention. It will substantially reduce cost to increase reach and its interactivity and algorithms can tailor program content to adapt it further for students attending low-income and rural schools. Thus, this low-cost, easy to disseminate technology-based bullying bystander intervention has the potential to have a substantial impact on the problem of bullying and the negative associated consequences for both students who are targets and bystanders in middle school when the problem of bullying peaks. There is a large market for the STAC-T intervention with approximately 100,000 public and private schools with middle-school grades in the United States. Globally, the online education market is growing at 10% a year and the digital health market exceeds $220 billion annually.

Interventions

BEHAVIORALSTAC-T

Middle school participants will complete online modules to learn about anti-bullying techniques and bystander intervention.

Sponsors

Klein Buendel, Inc.
Lead SponsorINDUSTRY
National Institute on Minority Health and Health Disparities (NIMHD)
CollaboratorNIH
Boise State University
CollaboratorOTHER
University of Mississippi Medical Center
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
11 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

for Students: * being enrolled in grades 6, 7, or 8 in a middle/junior high school in Idaho, Oregon, Mississippi, or New Hampshire. * being selected by school counselors and teachers for having a desire to make a positive difference at school, be mature, and have the ability to positively engage with peers and adults (Aims 1 and 2). * speaks and reads English or Spanish. * parent consents and student assents for participation.

Exclusion criteria

for Students: * participated in a previous study on STAC. * speaks and reads only a language other than English or Spanish. * does not consent and/or assent for participation. Inclusion Criteria for School Personnel: * employed in a middle/junior high school in Idaho or Mississippi with grades 6, 7, or 8. * employed as a principal, teacher, or school counselor. * speaks and reads English or Spanish. * consents to participate.

Design outcomes

Primary

MeasureTime frameDescription
Student-Advocates Pre- and Post-Scale (SAPPS)Baseline assessment, 30-day assessmentAn 11 item questionnaire measuring students' knowledge of buying, knowledge of the STAC-T strategies, and students' confidence to intervene in bullying situations. Items are rated on a 4-point Likert Scale ranging from 1 (Totally Disagree) to 4 (Totally Agree) and were summed to compute a total scale score. The minimum value is 11 and the maximum value is 44, and a higher score means a better outcome.
Bullying and Cyberbullying Scale for Adolescents (BCS-A) - Victimization Scale at 30 DaysBaseline assessment, 30-day assessmentThis questionnaire measures bullying and cyberbullying victimization in the past 30 days. The 13-item Victimization Scale assesses in-person bullying victimization with 8 items and cyberbullying victimization with 5 items. Items are rated on a 5-point Likert Scale ranging from 0 (Never) to 4 (Four or More Times) and were summed to compute a total scale score. The minimum value is 0 and the maximum value is 52, and a higher score means a worse outcome.
Use of Strategies at 30 Days Post-intervention30-day assessmentQuestions rating the student's use of each STAC-T strategy using a single item rated on a 5-point Likert scale: "How often would you say you have used these strategies to stop bullying in the past month?" (a) Stealing the Show; (b) Turning it Over; (c) Accompanying Others; and (d) Coaching Compassion. Total strategies reflects the number of students who used at least one of the four STAC-T strategies. Results are reported for students who reported witnessing bullying in the past 30-days (n=125/229).

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORMary Buller, MA

Klein Buendel, Inc.

Baseline characteristics

Characteristic
Age, Continuous12.13 years
STANDARD_DEVIATION 0.98
Grade
Eighth
145 Participants
Grade
Seventh
93 Participants
Grade
Sixth
130 Participants
Race/Ethnicity, Customized
African-American
41 Participants
Race/Ethnicity, Customized
American Indian/Alaska Native
8 Participants
Race/Ethnicity, Customized
Asian
5 Participants
Race/Ethnicity, Customized
Hispanic
143 Participants
Race/Ethnicity, Customized
Missing
15 Participants
Race/Ethnicity, Customized
More than One Race
48 Participants
Race/Ethnicity, Customized
Native Hawaiian/Pacific Islander
2 Participants
Race/Ethnicity, Customized
Other
4 Participants
Race/Ethnicity, Customized
White
133 Participants
Sex/Gender, Customized
Gender
Female
172 Participants
Sex/Gender, Customized
Gender
Male
118 Participants
Sex/Gender, Customized
Gender
Missing
15 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 3080 / 305
other
Total, other adverse events
0 / 3080 / 305
serious
Total, serious adverse events
0 / 3080 / 305

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 25, 2026