 In aim 1, investigators will compare the relative efficacy of bystander interventions to a increase bystander efficacy and behaviors, b reduce violence acceptance, c reduce interpersonal violence victimization and perpetration, and d increase program cost effectiveness. The three main bystander groups compared will be: exclusively online training, Green Dot speeches and intensive bystander training, and other skills-based bystander training. Program efficacy data will be obtained from student surveys, campus crime statistics, and surveys with college staff and administrators responsible for selecting and implementing bystander interventions. 