This comprehensive study evaluates the ESEA Title III Regional Planning and Evaluation Agencies in the State of California. The study is prepared and reported in two volumes: One evaluating the 21 Projects to Advance Creativity in Education (PACE) Centers and the other evaluating the 10 Regional Educational Data Processing (EDP) Centers. Analysis of the PACE Centers includes evaluation of ESEA Title III and the educational change process, descriptions of major elements of California's educational system and the relationship of these elements to the educational change process, evaluation of the individual PACE Centers in California, and several appendices showing methodology and data used in the analysis. The volume evaluating the EDP Centers describes the history and operation of the system, presents an analysis of services and costs of the system, and discusses program development and the funding of individual centers. Both volumes present conclusions and recommendations in a convenient beginning section. (TT)