Approximately 400 females committed to the state reformatory/training school for girls will be recruited for participation. The research design will consist of alternating cohort/waves of about 50 subjects each. One treatment condition will be administered at a time with a washout period between cohort/waves. Over a three year period, one half of subjects will get 18 hours of STD/HIV prevention and one half will get 18 hours of Health Education. All subjects will receive one individual counseling session designed to enhance motivation for behavioral change just prior to release from training school. Before and after the intervention, subjects' social competency skills, condom application skills, and health knowledge will be measured. Before intervention and at 6-month and 12-month follow-up, self-report measures of alcohol and drug use, condom use, sexual risk behaviors, and measures of victimization, partner risk, condom attitudes, self-efficacy, and communication related to condom use and risk reduction will be collected. Urine tests for the detection of 2 STDs (chlamydia and gonorrhea) will also be performed at admission to Columbia Training School and at 6-month and 12-month follow-up.