Parent, teacher, and peer ratings were collected for 75 grade school boys to test the hypothesis that certain family interaction patterns would be associated with poor peer relations. Path analyses provided support for a mediational model, in which punitive and ineffective discipline was related to child conduct problems in home and school settings which, in turn, predicted poor peer relations. Further analyses suggested that distinct subgroups of boys could be identified who exhibited conduct problems at home only, at school only, in both settings, or in neither setting. Boys who exhibited cross-situational conduct problems were more likely to experience multiple concurrent problems (e.g., in both home and school settings) and were more likely than any other group to experience poor peer relations. However, only about one-third of the boys with poor peer relations in this sample exhibited problem profiles consistent with the proposed model (e.g., experienced high rates of punitive/ineffective home discipline and exhibited conduct problems in home and school settings), suggesting that the proposed model reflects one common (but not exclusive) pathway to poor peer relations.Children who are rejected by their peers during the grade school years are at risk for continuing adjustment difficulties and a number of negative adolescent outcomes, such as school failure and delinquency (cf. Parker & Asher, 1987). Recently, investigators have begun to speculate about the etiology of peer difficulties, focusing particularly on the ways in which parental characteristics and family interaction patterns may influence children's social development and peer adjustment (cf. Parke, et al., 1989). Since many peer-rejected children display high rates of impulsive, non-compliant and aggressive behaviors in their peer interactions (cf. Coie, Dodge & Kupersmidt, 1990), one oft-stated hypothesis is that family characteristics that foster or support child conduct problems may contribute to peer difficulties (cf. Putallaz & Heflin, 1990).Extensive research has demonstrated associations between certain family characteristics and high rates of child conduct problems. In particular, unsuitable discipline practices (e.g., frequent and harsh punishment; inconsistent and ineffective limit setting) and family discord (e.g., marital conflict and parental hostility) appear more commonly in families of conduct problem children than in families of nonproblematic children (Becker, Peterson, Hellmer, Shoemaker & Quay, 1959;Emery, 1982;Loeber & Dishion, 1984;Patterson, 1986). Yet, relatively few studies have included concurrent measures of children's peer relations in order to elucidate the nature and extent of the association between such negative family characteristics and poor peer relations. Patterson, Dishion and Bank (1984) were among the first to test a model empirically linking inconsistent discipline and family discord (e.g., observer ratings of maternal inconsistency and direct observations of negative sibling interactions) to child ...