A sample of male Investigative subjects (N=171) who completed the SDS as freshmen in 1970 was sent a questionnaire four years later. Results indicated that, for Investigative-type freshman males, the SDS has moderately high efficiency in predicting, four years later, their ultimate major and their immediate and future vocational plans. (Author)

The present study investigated the efficiency of various existing measures, mainly psychological tests, for predicting job performance of mentally retarded workers in a sheltered occupational shop. Results indicated that existing measures are predictive of performance on some but not all jobs in a sheltered workshop. (Author)