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Completed

NCT Number: NCT05572398

Online Bullying Bystander Intervention for Middle Schools Phase II

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.

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Key information

Age range

11 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Boise State University, Boise, Idaho, United States

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About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Exclusion criteria

for School Personnel:

  • participated in a previous study on STAC.
  • speaks and reads only a language other than English or Spanish.
  • does not consent for participation.

Treatment and study plan

STAC-T

Behavioral

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

Primary outcomes

  1. Student-Advocates Pre- and Post-Scale (SAPPS)

    Time frame: Baseline assessment, 30-day assessment

    An 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.

  2. Bullying and Cyberbullying Scale for Adolescents (BCS-A) - Victimization Scale at 30 Days

    Time frame: Baseline assessment, 30-day assessment

    This 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.

  3. Use of Strategies at 30 Days Post-intervention

    Time frame: 30-day assessment

    Questions 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).

Sponsors and collaborators

Lead sponsor

Klein Buendel, Inc.

Industry

Collaborators

  • Boise State University
  • National Institute on Minority Health and Health Disparities (NIMHD)
  • University of Mississippi Medical Center

Registry information

Official study title

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

Acronym: STACII

Important dates

Study start
2022
Primary completion
2024
Study completion
2024
First posted
Oct 7, 2022
Registry last updated
Feb 24, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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