Two studies increased the low production rates of two severely retarded workers in a sheltered workshop setting; the first study by using differential reinforcement, and the second study by using a system of self-delivery of reward and self-evaluation. (Author/DLS)

Reported are four studies on methods to increase the production rates of severely and profoundly retarded adults in the sheltered workshop setting. It is explained that all four Ss had undergone intensive training on a complex task, were able to perform the task at a reasonably high rate, but did not usually maintain a high rate in the production…