“…For example, aggressive behavior (along with Oppositional Defiant Disorder) is a significant predictor for development of CD (Patterson, 1993;Loeber et al, 1998), of treatment outcome (Loeber et al, 1992(Loeber et al, ,1993, and of impaired functioning (Loeber et al, 2000) and antisocial behaviors (Lynam, 1996;Huesmann et al, 2002) extending into adulthood. In fact, findings from a 22-year longitudinal study revealed that, while many childhood variables (e.g., low IQ, poor housing, lower parent education) were individually related to criminality in adulthood, these variables "did not add to predicting criminality once early aggression was considered" (Huesmann et al, 2002, p.204).…”