The history of evaluation utilization in policy making and political features of program evaluation are discussed. A five-part continuum describes the evaluation process. Evaluation practice modifications contribute to real growth in evaluation use in congressional policy making as evaluation research improves the quality of information available…

The politics of program evaluation are discussed from the personal perspective of the Director of the General Accounting Office's Program Evaluation and Methodology Division, which has produced reports for committees of the United States Congress. It is concluded that successful evaluations must be useful to others and must understand the…