Three experiments were conducted in a variety of settings to test the effectiveness of differential reinforcement of other behavior in reducing high rates of inappropriate behavior in 6 mildly and severely retarded children (8-14 years old). (Author/CL)

Four speech deficient mentally retarded children (3-5 years old) with Down's Syndrome were taught imitative verbal responses by two methods based on operant conditioning principles. (Author/CL)

The combined effects of methylphenidate (Ritalin) and a token reinforcement program in controlling the classroom behavior of 16 hyperactive, institutionalized retarded youngsters (9- to 15-years-old) was investigated. (Author)

Three groups of eight institutionalized severely and profoundly retarded males (mean ages 9-14 years) were studied to determine the effects of enhancement of the physical and social environment and behavior modification training upon acquisition of self help skills. (Author/CL)

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.…

The effects of withdrawal of food, withdrawal of attention, and the simultaneous withdrawal of food and attention on the rate of self-injurious behavior of three profoundly retarded girls (10-18 years old) during mealtime were investigated. (Author)

Reinforcement control of toileting behaviors was established in three profoundly retarded institutionalized adults through the use of a totally automatic reinforcement dispenser. The device was found to be reliable, reasonably priced and more accurate than manually or semiautomatically delivered reinforcement. (CL)