Argues that a thorough understanding of factors that influence aggression in children cannot be achieved without including behavior genetic studies that allow examination of the effects of shared versus non-shared environment, as well as genes, on aggressive behaviors. Details the growing body of evidence on the genetic effects on aggression.…

Outlines a developmental model of antisocial behavior. Reviews research on the etiology and course of antisocial behavior from early childhood through adolescence. The route to chronic delinquency is marked by a reliable developmental sequence of experiences. Discusses implications for prevention and intervention. (Author/BJV)