The first three reports in this series describe the data-based results of systematic experimentation and survey research concerned with the following timely manpower issues: (1) The Effects of Monetary Incentives on the Learning of Remedial English by Disadvantaged Trainees, (2) The Reward Preferences of Neighborhood Youth Corps Trainees, and (3) The Feasibility of Coupling Available Manpower Development Services with Residential Addiction Treatment Facilities. In the first report, while no support was found for the hypothesis that monetary incentives significantly enhance trainees' learning of English, the authors believe that certain uncontrollable contaminating factors played a significant role in the lack of positive results. In the second report, disadvantaged Neighborhood Youth Corps trainees who were asked to select their preferred choices of ten potential rewards for training chose basic items over luxury, contrary to expectations. The implications of these findings are discussed. The third report, including a questionnaire survey of resident drug addicts, indicated that although vocational interests in key punching and auto repair justified skills training, the ambiguity of the addicts' work perceptions called for more than the ordinary manpower services. (Author/AG)