This study compared selection of a preferred reinforcing stimulus just prior to a training session by either the trainer or subject with profound developmental disabilities. Results obtained with four adult subjects indicated little or no difference in reinforcement effects when reinforcing stimuli were selected by subjects rather than trainers.…

A simultaneous presentation procedure to select reinforcers was implemented with two four-year-old twin boys who were developmentally delayed, noncompliant, and mute. Use of the procedure quickly and efficiently identified preferred reinforcers which were then used in an instructional task. (DB)

Analysis of videotapes of training procedures with 12 developmentally disabled adults in a horticultural day work program found an overall staff emphasis on selectively attending to workers' successful behavior with evidence of both efficiency and effectiveness of this approach. (Author/DB)

This study examined the matching and sequencing of quantities, numerals, and arbitrary forms by two individuals with mental retardation. Results showed that sequence training did not readily lead to new matching performances, unlike prior research with college students. Instead, training in matching to sample yielded emergent sequence production…

A fading procedure was successfully used to maintain high levels of compliance obtained with presenting high-probability requests immediately antecedent to low-probability requests in both a 5-year-old boy with developmental disabilities and a 15-year-old girl with developmental disabilities (for whom rephrasing of "don't" requests to…

An ecological study was made of persistent repetitious movements by 12 developmentally disabled adults in a horticultural day work program. Fewer dysfunctional patterns occurred during times when staff were actively teaching than when the trainee was isolated or resting. Results argued for teaching skills in terms of coordinated response…