The authors discuss how to use economic techniques to evaluate educational programs and show how to apply basic cost analysis to implementation of school-wide positive behavior support (SWPBS). A description of cost analysis concepts used for economic program evaluation is provided, emphasizing the suitability of these concepts for evaluating educational programs. The authors also describe the specific data and measurement and analytic procedures that cost analysis evaluation requires. The concepts are then applied in a case study showing a cost analysis of SWPBS. Implications are provided for extending the cost analysis case study into evaluation of cost-effectiveness and/or cost-benefit economic analyses of program success. (Contains 3 tables and 2 notes.)