"Data Management and Decision Making" is a set of instructional materials designed to teach practicing and potential educational administrators about the uses of operations research in educational administration. It consists of five units--"Operations Research in Education,""PERT/CPM: A Planning and Analysis Tool,""Linear Programming,""Queueing Theory," and "Computer Simulation." The first unit is an introduction. Each of the subsequent four units introduces a specific operations research technique and provides instruction on the basic terminology and skills involved in the technique. These materials were subjected to extensive testing and revision as part of the developmental project. The evaluation included a needs assessment, field testing, and cost-benefit analysis. Information on the evaluation is included along with the needs assessment instrument. (Author/IRT)