Tapping youth as agents for change: evaluation of a peer leadership HIV/AIDS intervention.

Purpose: To evaluate the impact of a community-based HIV/AIDS peer leadership prevention program on newly enrolled peer leaders and youth enrolled as peer educators for one or more years (repeat peer leaders).

Methods: Quasi-experimental nonrandomized design with two intervention groups (newly enrolled and repeat peer leaders) and one comparison group. The sample consisted of 235 adolescents, 164 peer leaders, and 71 comparison youth, drawn from nine communities in Massachusetts.