Originally designed for African-American youth, YAPP aims to prevent STDs, HIV/AIDS, and substance abuse among high-risk junior high school students. Guiding the program is the social influence model of behavioral change, which targets teens' knowledge, attitudes, intentions, and behaviors regarding high-risk activities. The intervention includes ten sessions for 7th grade students, delivered in regularly scheduled health or science classes, and a five-part booster session offered one year later, when the teens have entered 8th grade. Classes cover transmission and prevention of STDs and HIV/AIDS, the importance of using condoms for those who choose to have sex, and the development of decision-making and resistance/negotiation skills. In addition to lectures and class discussions, active learning is emphasized, with opportunities for students to participate in small group exercises and role plays. There are also homework activities and opportunities for parental involvement. A field study of the intervention was conducted in fifteen high-risk school districts in Chicago. Research focused on the group of students who first became sexually active during the study period. Following the booster session, these students were more likely than a control group of peers to report using condoms with foam; they also expressed greater intention to use condoms with foam in the future. Click here to view more detailed information on this program.