Utilizing attachment theory as a basis for conceptualizing close relationships amongadolescents, this study investigated two important relationship risk factors (child maltreatment,and adolescent self-perceived insecure attachment style) as predictors of“offender” and “victim” experiences in youth relationships. Inaddition to considering the influence of these risk factors, we further considered their interactionin predicting conflict in close relationships. Of interest was the extent to which attachment stylesmay function as a moderator of the relationship between childhood abuse and current abuse inteen close relationships. High school students (N = 321) in grades 9 and 10 completedquestionnaires tapping their histories of maltreatment, currently viewed styles of attachment, andconflict in close relationships over the past 6 months. Maltreatment alone emerged as the mostconsistent predictor, accounting for 13–18% of the variance in male's physically,sexually, and verbally abusive behaviors; in contrast, it was not highly predictive offemale's abusive behaviors. Maltreatment was predictive of victimization experiences forboth males and females. Attachment style did not substantially add to the prediction ofrelationship conflict beyond maltreatment; however, avoidant attachment style emergedrepeatedly as a significant predictor of female abusiveness and victimization. Attachmentself-ratings were found to function as a moderator of child maltreatment in predicting primarilymale coercive behavior towards a relationship partner as well as predicting male'sexperience of coercion from a partner. Thus, the presence of childhood maltreatment andadolescent self-perceived insecure attachment style applies predominantly to male youth. Theimplication of these gender differences for understanding relationship violence is discussed.