Ten functions of program theory are reviewed: contributing to social science knowledge; assisting policymakers, discriminating between theory failure and program failure, identifying the problem and target group, providing program implementation description, uncovering unintended effects, specifying intervening variables, improving formative use…

Evaluability assessment is a diagnostic and prescriptive technique that can be used to determine the extent to which different problems inhibit program evaluation. It involves policymakers, managers, and staff in developing program theory, clarifying intended uses of evaluation information, and planning further evaluations that would stimulate…

Stakeholder evaluation was designed to address widely recognized problems in the conduct of evaluation. However, global propositions about the problems and prospects of program evaluation obscure the circumstances in which social science can contribute to social problem solving. (Author/PN)