Research Question 1: In addition, we will investigate the possibility that characteristics of the youth's decision-making (impulsive decision-making; outcome expectations), affective arousal (callous-unemotional traits; low physiological arousal in response to negative consequences), temperament and behavior characteristics (baseline severity of aggressive behavior); perceived and actual peer reactions (perceived peer competence; peer rejection; peer victimization; deviant peers) and demographic characteristics (sex; age; race) will moderate the effectiveness of both interventions.