We evaluated a multiple schedule in which the extinction (S-) components were signaled overtly by a black lanyard and the reinforcement (S+) components were not correlated with any programmed stimuli in developing stimulus control over the high-rate social-approach responses of an adult with mental retardation. Responding was consistently low in…

To determine the feasibility of using pictorial stimuli in preference assessments, multiple-stimulus preference assessments were conducted with two adults with mental retardation using both tangible stimuli and pictorial cards representing these same stimuli. Stimuli predicted by the tangible assessment were more potent reinforcers than those…

This review discusses the history of noncontingent reinforcement (NCR) and summaries findings from treatment research. It describes the use of NCR as a control procedure, NCR as a function-based treatment, considerations in the programming of NCR schedules, behavior-change mechanisms underlying NCR effects, and directions for future research.…

A study developed a systematic functional assessment package to reduce the stereotypy and self-injurious behaviors maintained by nonsocial reinforcement in two individuals with mental retardation. Differential reinforcement of zero rates of responding (DRO) procedures using stimuli within the targeted sensory classes were successful in eliminated…