This study examined the relationship between family processes and risk for externalizing behavior problems among urban African American and Hispanic youth. The structural analysis of social behavior was used to code family interactions. Results indicate that high-risk boys were more submissive and less warm than low-risk boys. When they did assert themselves, high-risk boys tended to do so in a hostile manner. Parents of high-risk boys were more punitive and less nurturant than parents of low-risk boys. Regardless of risk status, African American boys were more assertive than Hispanic boys and African American parents were less controlling than Hispanic parents. These findings complement previous research on the development of antisocial behavior by highlighting the role of the adolescent in family processes.