Youth who witness parental intimate partner violence (IPV) are at increased risk of teen dating violence (DV). This analysis of secondary data investigated whether a bystander intervention program, Green Dot, was effective at reducing physical and psychological DV victimization and perpetration among youth who had and had not previously witnessed parental IPV. The parent RCT assigned 13 schools to control and 13 schools to the Green Dot intervention. Responses from 71,797 individual surveys that were completed by high school students were analyzed across three phases of a 5-year cluster randomized control trial. Multigroup path analyses revealed that students in intervention schools who witnessed parental IPV had a reduction in psychological (p < .001) and physical DV (p < .01) perpetration and psychological DV victimization (p < .01) in Phase 2 of the intervention, while those who did not witness parental IPV had a significant reduction in psychological DV victimization (p < .01). Individuals in the intervention received more training (p < .001), which was associated with lower levels of violence acceptance (p < .001). Violence acceptance was positively associated with DV victimization and perpetration (p < .001), especially for individuals who previously witnessed parental IPV. Green Dot is an effective program at reducing DV victimization and perpetration among the high-risk group of youth who previously witnessed parental IPV, largely operating through violence acceptance norms. This underscores the bystander intervention approach as both a targeted and universal prevention program.

目睹父母亲密伴侣暴力 (IPV) 的青少年遭受青少年约会暴力 (DV) 的风险增加。这项对二手数据的分析调查了旁观者干预计划Green Dot是否有效减少曾目睹过和未曾目睹过父母 IPV 的青少年的身心 DV 受害和实施。父母 RCT 指定 13 所学校进行控制，13 所学校进行绿点干预。在一项为期 5 年的整群随机对照试验的三个阶段中，分析了高中生完成的 71,797 份个人调查的回复。多组路径分析显示，目睹父母 IPV 的干预学校学生的心理（p < .001) 和身体 DV ( p  < .01) 实施和心理 DV 受害 ( p  < .01) 在干预的第 2 阶段，而那些没有目睹父母 IPV 的人在心理 DV 受害方面显着减少 ( p  < .01). 干预中的个人接受了更多的培训 ( p  < .001)，这与较低的暴力接受水平相关 ( p  < .001)。暴力接受与 DV 受害和实施呈正相关 ( p  < .001)，尤其是对于以前目睹过父母 IPV 的个人。绿点是一项有效的计划，可以减少以前目睹父母 IPV 的高风险青年群体中的 DV 受害和实施，主要通过暴力接受规范运作。这强调了旁观者干预方法既是有针对性的又是普遍的预防计划。