Post Cluster-Randomized Controlled Trial: Longer-Term Efficacy of a Bystander Program to Reduce Violence Perpetration and Victimization in a Prospective Cohort
Ann L. Coker, Zhengyan Huang, Xue Ding, Candace J. Brancato, Emily R. Clear, Heather M. Bush, Diane R. Follingstad
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引用次数: 0
Abstract
Purpose
In this cohort analyses, we sought to estimate the longer-term efficacy of a high-school based bystander intervention to reduce gender-based violence (GBV) into young adulthood.
Methods
Seniors were recruited from 23 of 26 high schools that participated in the original RCT (2010–2014) designed to test the effectiveness of a bystander intervention to reduce GBV. Of 3,389 high school seniors who completed an electronic survey in their last term, 1,986 complete at least one annual follow up survey through 2018 (58.6% retention). Receipt of bystander training was defined based on (1) the high school the participant attended (‘as randomized’ in the original RCT) and (2) participants’ report of additional bystander training received after high school (‘as reported’). The primary GBV outcomes were sexual violence perpetration and victimization rates (%) for the past 12 months.
Results
Only at the final follow up were significant reductions in sexual violence perpetration (SVP) noted for the ‘as randomized’ analyses. Self-reported SVP rates were 38% lower (adjusted rate ratio = 0.62; 95% Confidence Interval (CI): 0.48–0.81) among 1,107 participants who had attended schools randomized to the bystander intervention (SVP = 2.1%: 95% CI; 1.6–2.9) relative to 877 participants who had attended control schools (SVP = 3.4%; 95% CI: 3.0-3.9). Receipt of additional bystander training after high school was not associated with lower rates of any GBV form when compared with participants receiving no bystander training in or after high school.
Conclusions
Bystander training was not consistently associated with longer-term reductions in GBV perpetration nor victimization in this prospective cohort study based on a large school-based RCT.
期刊介绍:
The Journal of Family Violence (JOFV) is a peer-reviewed publication committed to the dissemination of rigorous research on preventing, ending, and ameliorating all forms of family violence. JOFV welcomes scholarly articles related to the broad categories of child abuse and maltreatment, dating violence, domestic and partner violence, and elder abuse. Within these categories, JOFV emphasizes research on physical violence, psychological violence, sexual violence, and homicides that occur in families. Studies on families in all their various forms and diversities are welcome. JOFV publishes studies using quantitative, qualitative, and/or mixed methods involving the collection of primary data. Rigorous systematic reviews, meta-analyses, and theoretical analyses are also welcome. To help advance scientific understandings of family violence, JOFV is especially interested in research using transdisciplinary perspectives and innovative research methods. Because family violence is a global problem requiring solutions from diverse disciplinary perspectives, JOFV strongly encourages submissions from scholars worldwide from all disciplines and backgrounds.