Reinforcement procedures and the increase of functional speech by a brain-injured child.
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Biomedical subjects
Publications and source records attributed to R V Hall.
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The effects of contingent teacher attention on study behavior were investigated. Individual rates of study were recorded for one first-grade and five third-grade pupils who had high rates of disruptive or dawdling behavior. A reinforcement period (in which teacher attention followed study behavior and non-study behaviors were ignored) resulted in sharply increased study rates. A brief reversal of the contingency (attention occurred only after periods of non-study behavior) again produced low rates of study. Reinstatement of teacher attention as reinforcement for study once again markedly increased study behavior. Follow-up observations indicated that the higher study rates were maintained after the formal program terminated.
Systematic reinforcement procedures were used to increase study behavior in the classrooms of three beginning teachers experiencing problems of classroom control. Classroom study rates were recorded during a baseline period. During subsequent experimental periods, the teachers changed one or more reinforcement contingencies (teacher attention, length of between-period break, a classroom game) to bring about increased study rates and concomitant reductions in disruptive behaviors. A brief reversal period, in which these contingencies were discontinued, again produced low rates of study. Reinstatement of the contingencies resulted once again in marked increases in study behaviors.
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This article describes and illustrates with two case studies a relatively novel form of the multiple-baseline design called the changing criterion design. It also presents the design's formal requirements, and suggests target behaviors and circumstances for which the design might be useful.