Contrary to earlier views, studies show that preschool children with conduct problems will likely continue to exhibit some maladjustment in adolescence and adulthood. A high rate of aggression and noncompliance in toddlers can be predictive of serious antisocial problems later in life, if not treated. Interventions aimed at changing the disruptive behavior for a wide range of family circumstances should focus on modifying the sources of influence affecting the development of antisocial behavior. The components of such a multimodal intervention program are: (1) the relationship between child and caregiver; (2) factors within the child; (3) factors within the caregiver; and (4) factors in the larger social context. (AS)