Abstract
The purpose was to document the effects of a modified DRL (differential reinforcement of low response rates) schedule of reinforcement with a class of 17 elementary students in special education. The procedure permitted students access to reinforcers if they exhibited 5 or fewer rule violations in a 90-min. period. Monitored target responses were out-of-seat and talking-out behaviors. The results indicated a low mean number of responses per student when the experimental program was in operation and a substantial increase in mean number of responses per student when the experimental program was withdrawn.
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