This study examined the effects of blocking self-injurious behavior on the self-restraint of a 19-year-old male with severe mental retardation. Consistent with the negative reinforcement hypothesis, blocking SIB resulted in near-zero levels of SIB and moderate reductions in self-restraint. (Author/DB)

A study found verbal reprimands, delivered contingent upon eating prohibited foods, were sufficient to decease the food stealing of a girl (age 14) with Prader-Willi syndrome. Warning stimuli were then successfully used to help her discriminate between permitted/prohibited foods during sessions in which food stealing was not directly observed.…

Prompting, positive and negative reinforcement, and a gradually extended reinforcement schedule were used with three autistic clients (two six-year-olds and one adolescent) to teach them to maintain on-task behaviors without constant supervision. Results indicated that appropriate behavior could be successfully maintained with only infrequent and…

The effects on compliance of two types of differential negative reinforcement (DNR) were studied with a five-year-old girl with moderate mental retardation and a history of severe disruption. Escape from instructional trials was either contingent on a communicative behavior or compliance. Behaviors improved with both interventions, but compliance…