This study examined how the social ecological factors of family history and relationships with peers were associated with 193 college men's partner violence and attitudes regarding battering. Multivariate (path) analyses revealed that witnessing paternal battering in childhood was both directly and indirectly (through male peer variables and attitudes concerning battering) related to a man's violence toward female partners. Specifically, those men who reported witnessing paternal domestic violence as a child were more likely to associate with male peers who are abusive and who provide informational support for relationship violence. Associating with abusive male peers and receiving male …