Abstract
Variable-time (VT) schedules of reinforcement deliver reinforcers contingent on the passage of a specified average amount of time. VT schedules that arrange for frequent reinforcer deliveries have been effective in producing immediate suppression of elevated levels of target behaviors. However, dense schedules may not be practical for caregivers and staff and a systematic methodology for thinning VT schedules is needed. This study employed VT schedules of attention to reduce attention-maintained problem behavior in a 14-year-old male. Following reduction in attention-maintained problem behaviors, the VT schedule was thinned. Results showed that a return to continuous attention following re-emergence of behaviors during schedule thinning resulted in maintenance of low levels of these behaviors and high levels of activity engagement.
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