In the past, many youths with CD were treated in specialized, highly structured inpatient and residential programs that tried to nurture competence and good choices and to promote a positive sense of self. More recently, the Centers for Disease Control and Prevention Task Force on Community Preventive Services (Hahn et al. 2004) recommended a shorter duration of placement (average duration of 6–7 months rather than 18 months). CD youth would then be discharged to foster care, with intensive collaboration between program staff and foster families. Measured outcomes were to include reduction of violence. Longitudinal study of this approach is needed to determine the mediators of improvement, risk for further deterioration, and duration of benefit.