The five sites included Washington, D.C.; Clayton County, Ga.; Boise, Idaho; Oklahoma County, Okla.; and Dane County, Wis. The self-report survey was designed to be administered to a youth every 6 months from the date of referral up to 18 months after referral. Four different forms were used: the intake self-report, the 6-month self-report, the 12-month self-report, and the 18-month self-report. Surveys began in February 1980 and concluded in February 1983. At each of the evaluation sites, onsite data coordinators collected the names and addresses of the juvenile offenders under study in the national evaluation. Initially, surveys were mailed from the local sites by the coordinators, but starting in July 1981, a centralized data collection method, known as AUTOTRAK, was instituted. Findings from each site are presented and are organized by site, rather than by topic. Tabular data and the self-report survey instrument are included.