To conduct this study on criminal and antisocial behavior, the authors devoted years to collecting data from a large community sample of first-generation subjects. Data were garnered throughout their early adolescence, twenties, and thirties as well as from these first-generation subjects biological children during their own early adolescence. The results of these studies have profound implications for future research and methodology on deviant behavior.

To conduct this study on criminal and antisocial behavior, the authors devoted years to collecting data from a large community sample of first-generation subjects. Data were garnered throughout their early adolescence, twenties, and thirties as well as from these first-generation subjects' biological children during their own early adolescence. The results of these studies have profound implications for future research and methodology on deviant behavior.