Findings from a randomized controlled design study of an ability-based versus needs-based approach to response-contingent learning among children with significant developmental delays and disabilities who did not use instrumental behavior to produce reinforcing consequences are reported. The ability-based intervention and needs-based intervention…

Twenty hyperactive 6- to 9-year-old children of normal intelligence were studied in a half-day laboratory classroom in a double-blind condition in which half the Ss were placed on Ritalin and half on placebo. (Author/CL)

Two studies measured the feasibility of DRO (differential reinforcement of other behavior) and VT (variable time) reinforcement in reducing body rocking stereotypy of institutionalized severely and profoundly retarded adults (N=2 and 5). (CL)

Four treatment procedures were evaluated for effectiveness in reducing self injurious behavior (SIB) of 22 severely handicapped students. Treatment procedures included contingent restraint, reinforcement withdrawal, differential reinforcement of incompatible behavior, and ommission training (rewarding the S for not emitting the SIB response).…

Five experiments were conducted to determine whether properties inherent in some training procedures may subtly influence the adaptability of skilled performance of complex tasks. The first two experiments assessed the insensitivity of low-rate performances. Examined in the third experiment was the issue of whether instructions that focus…