The Office of Adolescent Pregnancy Programs (OAPP/DHHS) has been encouraging its abstinence-oriented grantees to incorporate youth development strategies. It wanted to learn (1) more about the relationship between these strategies and prevention of sexual risk taking, (2) how its funded programs have combined youth development and abstinence education components, and (3) whether one could determine the independent effects of each component on youth outcomes. This report describes findings related to these issues from a comprehensive literature review, examination of grantee documents, and site visits. Recommendations focus on strengthening the usefulness of grantee year-end reports, strengthening individual grantee evaluations, and strengthening OAPP's ability to assess effectiveness across grantees.