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Chunk #2 — PARTICIPANTS AND METHODS — Participants

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Participation in a family-centered prevention program decreases genetic risk for adolescents' risky behaviors.
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Schools in four rural Georgia counties provided lists of 11-year-old students, from which youth participants were selected randomly (see 5). Parents gave written consent to their own and the youths’ participation, and youth gave written assent to their own participation. Each family was paid $100 after each assessment. The sample for the present study included 350 families randomly assigned to receive the SAAF intervention and 291 randomly assigned to the control condition; families assigned to SAAF were oversampled.