The acquisition of new skills may be hindered when teaching procedures vary from previously validated approaches or contain errors. In the present study, we compared the acquisition and maintenance of response chains taught using a perfectly implemented system of least prompts and a multiple verbal prompts procedure (i.e., addition of multiple…

This guide presents strategies to teach students with mental retardation to request their preferences, protest non-preferred activities, and clarify misunderstandings. The strategies were field tested with more than 200 children and adults in community, residential, vocational, and educational settings. Suggestions are included for instructing…