the case in the present study in which the risk profiles were fairly discriminating in terms of risk for arrest. Thus, evidence suggests that the externalizing profiles and their associated risk factors were meaningful for predicting important and costly societal outcomes. The risk profiles for arrest may lead to targeted, cost-effective interventions that take into account both risks and developmental stage (i.e., peer deviance and individual stress during later adolescence). For example, preventive interventions might target adolescents with deviant peers or adolescent males who are at risk of experiencing high levels of stress.