The present investigation was conducted to determine if stimulus overselectivity in 19 autistic children (5 to 12 years old) is changed as a function of repeated exposure to testing. (Author/SBH)

This study investigated the effects of between-trials variability on the alternation discrimination of retardates. Brightness and size were variable between trials and irrelevant. Initial response outcome and mental age were also independent variables. Neither between-trials variability nor mental age produced a significant main effect, while the…

Three retarded children 3- to 11-years-old were trained, using prompting and reinforcement procedures, to respond correctly to three categories of prepositional requests (next to, under, and on top of). (Author)

The bibliography on learning in mentally handicapped persons is divided into the following topic categories: applied behavior change, classical conditioning, discrimination, generalization, motor learning, reinforcement, verbal learning, and miscellaneous. An author index is included. (KW)

To differentiate behaviorally, success-strivers and failure-avoiders within a group of educable mentally handicapped, two experiments were conducted. The effects of learning potential status (gainers, nongainers, high scorers) and motivational style (success strivers, failure avoiders) on discrimination learning when reinforcement was varied was…

Provided is a selected review of research on the education and training of the severely to profoundly mentally retarded which was reported in academic and professional publications in the years 1969 - 1975. Sections present bibliographic information and annotations for approximately 164 citations in the following eight research categories (sample…