During the past decade there has been increasing public and political acceptance of the utility of inquiry and inquiry-related activities for bringing about educational improvement. Specifically, educational research, development, diffusion, and evaluation (RDDE) have been singled out as essential activities. This document presents the report of a study designed: (1) to develop a conceptual map representative of the functions (roles), tasks, and skills of educational researchers and research-related personnel; (2) to utilize the data generated in objective 1 in designing and developing multidimensional competence instruments and assessment procedures to ascertain the extent to which research and research-related personnel possess the identified competencies; (3) to inventory and describe current training programs in educational RRDE and their human and materials products; (4) to determine how many persons are needed to perform each function identified in objective 1, i.e., what is the demand for trained personnel to perform each function; (5) to revise existing manpower projections based on recent funding of RRDE activities; and (6) to synthesize existing manpower studies based on nonfinancial projections. (Author/HS)