Data used in this study come from the PROSPER (PROmoting School–community–university Partnerships to Enhance Resilience) project (Spoth, Greenberg, Bierman, & Redmond, 2004). PROSPER is designed to study the impact of a partnership mode of delivering preventive interventions through a university–school–cooperative extension collaboration. The PROSPER study includes 28 school districts in Iowa and Pennsylvania randomized into control and intervention conditions. A random sample of 2,267 families of adolescents from the first wave of in-school data collection was invited to participate in home-based family data collection; 979 (43%) participated.