PIP: The decision to prevent an unintended adolescent pregnancy is a key factor in a young person's ability to achieve or maintain self-sufficiency. Many youths are not, however, capable of making careful fertility-related decisions. Poor self-perception and external locus of control are considered major factors in determining the quality of decisions which adolescents make in this regard. The author developed a three-phase program to provide freshmen at an inner-city high school in New York City with skills to enhance self-perception and abilities to exercise greater control in their lives, especially in terms of their sexual behavior. The program involved eight weeks of interpersonal skills training in small groups, six weeks of career mentorship, and role playing, writing, and acting out skits. No difference was found at the pre-test between the control group and experimental group. Each group included sixty subjects, 31 males and 89 females overall. Subjects were mainly Black American, West Indian, and Hispanic. Post-test results found a significant decrease in the frequency of sexual activity reported by the experimental condition participants. Moreover, contraceptive use among sexually active subjects in the experimental group increased by more than 50% after treatment. These findings indicate that a skills training intervention promoting health behavior can achieve a significant decrease in sexual activity and an effective increase in contraception use among inner-city high school students.