The evaluation of prevention and health promotion programs is one component of the broader field of evaluation research or social program evaluation. Evaluation research applies the practices and principles of social research to assess the conceptualization, design, implementation, effectiveness, and efficiency of social interventions (Rossi & Freeman, 1993). Prevention program evaluation is one component of evaluation research that draws on knowledge and traditions from several disciplines and fields of study, including public health, psychology, sociology, education, social work, social policy, and public administration.