Family factors and adolescent substance use: models and mechanisms

This article considers the relation of family factors to adolescent substance use, with a focus on the specific pathways by which family factors have their effects. We review findings on four types of variables (family substance use, parental support and monitoring, parent-child conflict, and family life events) and discuss theoretical models of how family risk and protective factors are related to adolescents' outcomes. The evidence favors a transactional model in which family factors have largely mediated effects on adolescent substance use through relations to adolescents' self-control, life events, and peer affiliations; interactions between variables are also prominent. We discuss the implications of mediated effects for theoretical models of human development and consider how the transactional approach opens avenues for preventive intervention.