Choice in mentally retarded participants was investigated under two work conditions with and without environmental support. It was also assessed how choosing a work condition interferes in the work performance. Three mentally retarded adults learned a work task with and without environmental support. The teaching was conducted with stimulus control techniques, shaping, fading, and verbal instructions. An environmental support developed solely for the purposes of the task displayed containers to place its different components, such as small pieces of paper, paper sheets cut in small notepad size, glue stick, and the final product. This environmental support was designed to provide immediate feedback, to increase or maintain the rate of work response and to prevent errors during the task routine. The experimental design consisted of five phases: teaching the task collectively, pre-training, individual training with and without the support, choice training, and follow-up. The results showed that when the environmental support was introduced, the time spent to finish the task decreased, and so did the average number of errors performing the task. The results also suggested that the environmental support yielded greater control over work and the opportunity to make choices engendered more motivation and work independence on the participants.
choice; vocational training; mentally retarded adults; self-determination
