Local district personnel are responsible for collecting evidence that categorically aided projects have an impact upon disadvantaged learners' behavior. The district personnel requested assistance in designing evaluation methods to meet their needs. In keeping with the State Education Department's policy of maximizing service to the field, this handbook was developed by the Bureau of Urban and Community Programs Evaluation to assist local coordinators assemble defensible data and provide the best information for the decision makers who must select treatments for their respective disadvantaged learner population. The contents of the handbook were assembled in a format that outlines application only. It provides selected applications as they seem relevant to the construction of behavioral objectives, the development of defensible sampling plans, and the analysis of data collected under definable evaluation designs. In addition, an appendix provides both actual illustrations of evaluation designs currently being applied to Title I ESEA projects and an evaluation flow chart for planning. (Author/JM)