The basic objective of this research project was to determine the effectiveness of the Marine Corps Task Analysis Program (TA) as it had been conducted by the Office of Manpower Utilization (OMU). Main findings and conclusions are summarized in the eight research areas into which the study was divided: TA observation and interview procedures; task inventory construction; occupational field sample size; computer procedures and data analysis; OMU organization and personnel; orientation, training, and team performance; peace-time task analysis and its relation to war-time conditions; and the use of worker characteristics in classification and assignment. The overall conclusion from the research is that the TA program is a highly valuable asset to the Marine Corps in improving and maintaining effective utilization of its human resources. Appendix A contains an annotated list of 15 technical reports that are end-products of this project, and which contain detailed documentation of all phases of this project. Appendix B contains the study directive used and a distribution list. (Author/TA)