Operation Pathfinder was a special manpower project designed to retrain behaviors of the disadvantaged and to establish positive motivations to work for a living through application of social reinforcement methodology. The project demonstrated that a positive reinforcing environment and properly structured work situation will provide a means of behavior modification for parolees and other disadvantaged persons. Program tasks included job development, training supervisors and counselors, counseling the hard-core trainees, and evaluating the effects of the reinforcement experimentation on the work behavior of the subjects. It was found that the application of social reinforcement to juvenile parolees and adult disadvantaged resulted in greater employment stability, better productivity, and less recidivism. As the key to job performance is supervision, the primary focus of the project was on the supervisor. Four manuals designed to aid supervisors in training disadvantaged employee groups were developed under this project, and are available as VT 018 031-018 034 in this issue. (MF)