This paper contains cost unit tables and instructions for their use in estimating the total cost of evaluating a given instructional objective or group of objectives. Included is a list of analytical procedures to be followed in the development of any device to evaluate student performance, (e.g., a unit exam in child development or an attitude scale relating to instructional methods). Tables for estimating development costs (a dollar cost for ten items) include differential cost factors for the behavioral area sample, the level of complexity, the format of the device, and the stimulus source. Tables for method of administration, method of scoring, method of item and test analysis are also included. A 25-item bibliography contains selected references related to the development of specific types of evaluation devices. (JS)