The speaker discusses Congressional program evaluation. From the Congressional perspective, good evaluators understand the political, social, and economic processes; are familiar with various evaluation methods; and know how to use authority and power within their roles. Program evaluation serves three major purposes: to anticipate social impact or predict an event; to supervise and control the executive's operation of ongoing programs; and to supervise and control the executive branch after a program has reached its conclusion. Some factors which are significant for Congressional program evaluation are: inclusion of Title VII and Title VIII in the Congressional Budget and the Impoundment Control Act of 1974; the establishment of a Division of Program Analysis in the General Accounting Office (GAO); guides of program-related information jointly prepared by GAO and the Office of Management and Budget (OMB); and the GAO document, "Evaluation Analysis to Support Decision Making." Other legislative activities to facilitate evaluation include the Legislative Reorganization Act of 1970; the Bolling Committee Reform Resolution--H.R. 988; the Technological Assessment Act of 1972; and the OMB directive that all government agencies include an evaluation section when submitting proposals for new funding. (A question and answer section is appended.) (MH)