The Multimedia Approach to Pregnancy Prevention (MAPP) is an expert intelligence multimedia program administered in outpatient and inpatient clinics in the University of Miami/Jackson Children's Hospital (Florida). The target population for the MAPP program is youths aged 9-14 years, diagnosed with chronic illnesses (asthma, diabetes, and sickle cell disease). Program sessions take place in a clinic setting, using a portable computer. Three sessions have been developed on chronic illness and its effects on sexual development. The major aim of MAPP is to strengthen intentions to postpone sexual initiation and prevent pregnancy. Evaluation takes place by examining differences between a treatment and control group on pre-post tests at baseline, 1, 3, and 6 months. Measurement instruments include a pre-post questionnaire, computer log, module development logs, and clinic checklist. Outcome evaluation includes comparison of knowledge and attitude change toward sexual abstinence and changes in behavioral intention to choose abstinence in both the intervention and control group. Preliminary reports indicate acceptance of the program by subjects, parents, and clinic personnel. Contains 13 references. (Author/MES)