This study examined and compared the effectiveness of a simultaneous prompting procedure used in both 1:1 and small group instruction to teach pretend play skills to a group of preschool students, three having a diagnosis of pervasive developmental disorder and one having a diagnosis of severe developmental disabilities. The study also assessed…

Two experiments investigated whether six individuals (ages 7-64) with developmental disabilities or autism would demonstrate stimulus classes after observing another individual demonstrate the prerequisite conditional discriminations. Results found that stimulus class technology, coupled with observation, may be an economical and efficient means…

The authors discuss activities that help mentally handicapped adults emphasize thinking processes: observation questions, impact chart, solving a puzzling situation, and use of examples/nonexamples. The authors stress use of simple concepts, concrete objects, and realistic situations in developing intellectual skills. (CT)