The performance of a 3-year-old with Rett Syndrome in a Contingency Intervention Program using head and hand switches and adapted toys was assessed over 18 months. Learning contingent control of the stimuli positively motivated the child, promoted attention to toys and objects, and generalized to the classroom. (SW)

A treatment package consisting of differential reinforcement of other behavior (DRO), token fines, and prompted relaxation was used to reduce the agitated-disruptive behavior of a young adult with autism and mental retardation living in a community group home. DRO procedures were partially implemented by a peer with Down syndrome. Baseline rates…

When two nonhandicapped peers of an autistic five-year old were trained to initiate social interaction, social interaction increased and then dramatically decreased in a reversal phase, and no decrease in the autistic child's disruptive behaviors was observed. When the autistic child was trained to initiate interaction, social interaction…