The Policy & Research Group (PRG) will conduct a rigorous evaluation of the Peer Group Connection program's impact on sexual behaviors associated with teen pregnancy, as well as education outcomes. Peer Group Connection (PGC) is a school-based, group peer mentoring program for ninth grade students that is designed to facilitate the transition into high school and improve non-cognitive abilities, student engagement, and educational outcomes. The study enrolls students from high schools that serve large populations of economically disadvantaged and minority students in communities with high teenage birth rates. In North Carolina, the study is being implemented in schools serving rural populations, and in New York City, schools serving largely Hispanic and other minority populations are targeted.