Three experiments assessed the efficacy of various reinforcers to increase correct task responding in a total of 10 autistic children, aged 6-9. Of the reinforcers used (stereotypy, delayed echolalia, perseverative behavior, and food), task performance was highest with opportunities to engage in aberrant behaviors, and lowest with edible…

Recent experiments are reviewed in three areas of research concerning reinforcement schedules: (1) behavioral history effects on schedule performance; (2) the role of instructions in schedule performance of humans; and (3) dynamic schedules of reinforcement. The paper concludes by identifying some general issues concerning reinforcement schedules…

Seven adults with severe to profound mental retardation participated in match-to-sample discrimination training under three conditions. Results indicated that error-correction procedures improve performance through negative reinforcement; that error correction may serve multiple functions; and that, for some subjects, trial repetition enhances…

The study sought to identify some of the variables controlling the severely aggressive behavior of two severely retarded children (ages 9 and 14). Experiments conducted under various conditions showed that, while aggressive behaviors sometimes serve as an escape function, the behaviors can be terminated through reduction of the causative situation…

This study found that, in a task context, differential reinforcement of other behavior (DRO) effectively reduced problem behavior and increased task performance of 2 adolescents with severe disabilities (ages 15 and 19), whereas a time-out procedure was ineffective. In a leisure context, time-out was effective while DRO was ineffective.…

This article analyzes variables associated with adherence by parents to recommendations designed to solve common childhood problems and specific corresponding processes that are responsible for poor adherence. Adherence variables include establishing operations, stimulus generalization, response acquisition, and consequent events. (Contains…

The performance of five students (ages 6 to 10) in an adjustment class for deaf children was compared under fixed and variable ratio schedules of reinforcement. During the VR condition, students visually attended more and engaged in disruptive behavior less often than during the FR condition. (Author)

The study investigated the effects of interspersing known items during spelling instruction on new words for three moderately to severely mentally retarded male students (ages 19 to 24). Results showed that high density reinforcement did facilitate performance over baseline; however, interspersal training was superior to the other conditions in…