The Application of Bystander Intervention Scripts: Implications for Guardianship in Action.

Responding to high rates of interpersonal victimization and perpetration among adolescents, schools have implemented bystander intervention (BI) training to educate students to intervene to prevent or stop violence. These trainings function much like an application of scripts for guardianship in action. The current study builds on the overlapping and complementary bodies of BI and routine activities research by testing whether participation in BI training, namely Green Dot (GD), influences individuals' underlying ability to intervene. Using four years of survey data collected from high school students (N = 2,374-3,443), we use item response theory to model the difficulty of engaging in different BI behaviors. We then estimate multivariate ordinary least squares regression models, one for each year, to estimate the effect of GD training on students' ability to intervene. The item response theory results show that BI behaviors differ in terms of how "difficult" they are for respondents to engage in. Findings show that in each year, GD training increased students' underlying ability to intervene. Our findings suggest BI training and guardianship in action scripts should take into account this varying difficulty of intervention behaviors to best train individuals for successful intervention to prevent victimization.

Examining the Effect of Perceived Responsibility on Online Bystander Intervention, Target Hardening, and Inaction.

Failure to take responsibility for intervening has been identified as a primary barrier to bystander intervention. Building on these findings, we examine how perceptions of responsibility affect responses to witnessing victimization in the online realm-a topic that has received limited attention. Using a maximum-likelihood selection model, we analyze data from the Pew American Trends Panel (N = 3709) to estimate the effects of respondents' perceptions of the role different groups should play in addressing online harassment on their likelihood to engage in intervention, target hardening, or inaction in response to witnessing online harassment, conditioned upon their likelihood of having witnessed such behavior. Findings indicate that the greater role respondents believe online users should have in addressing online harassment, the more likely they are to intervene. (b = .310). The greater role respondents believe law enforcement or elected officials should have in addressing online harassment, the less likely they are to intervene (b = -.135 and -.072, respectively). These findings have implications for future efforts to curb online harassment through users' crime prevention efforts.

Who Are the Mavens of Bystander Intervention? Implications for the Social Diffusion of Intervention Norms.

A recent randomized controlled trial reported that Green Dot (GD)-a bystander intervention training program that targets popular opinion leaders for intensive training-reduced school-level interpersonal violence perpetration and victimization. Expanding GD's targeted group members to include "mavens" of bystander intervention-those who spread bystander intervention norms to others by communicating with peers-may increase the effectiveness of such training. Self-report data collected from students at the 13 intervention high schools in Kentucky are analyzed to identify characteristics of those who engage in discussions with peers about preventing interpersonal violence. Findings show that students who engage in more frequent bystander behaviors are more likely to have such conversations with peers, but GD participants were no more likely than nonparticipants to discuss preventing interpersonal violence with peers.