Adolescent pregnancy-prevention program. A model for research and evaluation.

Despite the increased interest in the effects of adolescent pregnancy-prevention programs, most interventions lack the research design and data essential for evaluation. This article describes a model in which evaluative research was incorporated in program design. The derivation of the model, the selection of measurable parameters, characteristics of the population reflected in baseline and subsequent data, and problems in quantifying and interpreting appropriate variables are discussed. Clinic data and aggregate data from three self-administered surveys is used. The surveys were completed by students in the inner-city junior and senior high schools that cooperated in the education and clinical program. We demonstrate how these two types of data augment one another in assessing program effects. The study explores the evaluation and the timing of change in sexual knowledge, attitudes, and behavior (coital, contraceptive, and clinic) and thus may contribute to the design of measurable, replicable interventions.