This symposium will include research regarding two mixed/virtual reality platforms and one app all of which are aimed at reducing youth violence and the experience of aggression and bullying by youth. Each presentation will provide participants with an understanding of how the specific technology is being used for violence prevention and what preliminary or small-scale trial data suggest with regard to effectiveness. Specifically, the first presentation will focus on the findings from a pseudo-randomized trial testing the impacts of a virtual reality intervention implemented with middle school students. This study demonstrates positive effects on student empathy, physical bullying, sense of school belonging, and a willingness to intervene as an active bystander. The second presentation will focus on the results of a randomized controlled trial testing the impacts of teacher coaching blended with mixed-reality practice on teachers’ detection, prevention, and responding to bullying through teacher self-report and classroom observations. This study demonstrates improvements in teachers’ responses to bullying, including intervening with perpetrators and victims, and seeking assistance from other professionals. Finally, the third presentation will provide a 7-week program for middle school youth call BullyDown, which covered communication, problem-solving, respect for diversity, identifying bullying, attitudes toward bullying, bystander intervention, coping with stress, empathy, perspective-taking, anger, and impulsivity and incorporated cellphone text messaging. Focus group data will be presented. An expert in technology-based public health interventions will serve as the discussant, synthesizing themes and future directions as well as facilitating a conversation with audience members.