Feasibility of the STAC-T Bullying Bystander App
Bullying is a significant public health issue, with approximately 25% of middle school students reporting being a target of bullying in the past year. STAC is an evidence-based bullying bystander intervention for middle school students. A multi-institutional research team developed a technology-based version of STAC (STAC-T) and evaluated the acceptability and relevance of the program, as well as how acceptability and relevance are related to the use of specific skills (STAC strategies) students learn in the program. Significance, methods, data, and results have been published in the scientific journal, JMIR Formative Research.
STAC-T, which included a 40-minute training and a 15-minute booster session, was completed by 249 middle school students recruited from six middle schools in rural, low-income communities in the United States. Students completed a post-training survey assessing program acceptability and relevance, whether they witnessed bullying post-training, and the use of the STAC strategies to intervene in bullying situations. Descriptive statistics were used to assess acceptability, relevance, and the use of STAC strategies. Linear regression analysis was used to assess the relationship of program acceptability and relevance to STAC strategy use.
Most students reported the program was acceptable (82.1 to 90.0%) and relevant (78.6 to 83.0%) for students at their school; 88.8% (111) of the 50.2% (125) of students who witnessed bullying post-training also reported the use of at least one STAC strategy to intervene when witnessing bullying. Program relevance was a significant predictor of post-training use of STAC strategies. In contrast, program acceptability was not a significant predictor of post-training STAC strategy use.
This study provides support for the acceptability and relevance of STAC-T, as well as the effectiveness in promoting the use of the STAC strategies to intervene in bullying situations. Further, program relevance was related to STAC strategy use, highlighting the importance of assessing program relevance for specific student populations.
The multi-institutional team was led by Dr. Aida Midgett from Boise State University. Collaborators included Dr. Diana Doumas, Taylor Perron, and Jennalyn Shelton from Boise State University; Dr. Robin Hausheer from the University of Vermont; Dr. Amanda Winburn from the University of Mississippi; and Brandon Herbeck and Mary Buller from Klein Buendel. The research was supported by a grant to Klein Buendel from the National Institute on Minority Health and Health Disparities (R42MD014943; Dr. Aida Midgett, Principal Investigator).


