Inclusion of family members in the study. Youth and both parents are scheduled for assessment. All family members living in the household of the target adolescent will be invited to participate. Decisions are made on a case by case basis regarding the inclusion of very young children (younger than 10). In addition, individuals who are not blood relatives but have significant roles in raising the adolescent will also be invited. Parental figures will be asked to complete the parent version of the assessment battery. Our previous projects have been very successful at identifying and engaging family members into treatment as well as in retaining them throughout the course of the treatment (Santisteban et al., 1996; Szapocznik et al., 1988).