Participants are randomly assigned to receive either the combined ERP/Family Treatment Program (n=56) or RT (n=24). Both treatments are delivered over 12 90-minute outpatient sessions according to detailed treatment manuals.Youth and families undergo comprehensive and systematic, including behavioral, assessments by blind clinical evaluators at baseline, monthly during treatment, post-treatment and 2 follow-up evaluations over 6 months. Treatment outcome is examined in multimodal fashion and across multiple functional domains with a special emphasis on family contextual variables. The impact of baseline functioning, including family context, and initial change over time on treatment outcome is also systematically evaluated.