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  • Title: Effects of increased response effort and reinforcer delay on choice and aberrant behavior.
    Author: Gwinn MM, Derby KM, Fisher W, Kurtz P, Fahs A, Augustine M, McLaughlin TF.
    Journal: Behav Modif; 2005 Jul; 29(4):642-52. PubMed ID: 15911686.
    Abstract:
    A four-phase investigation was completed to analyze the utility of forced-choice preference assessments when response effort and reinforcer delays are altered within a subsequent reinforcer assessment. The results indicated that access to highly preferred stimuli continued to serve as a reinforcer when increased response effort was required. When reinforcer delay was increased, the utility of preferred stimuli to serve as a reinforcer was variable. Despite stimuli continuing to serve as reinforcers for academic task engagement, increased response effort and reinforcer delay resulted in an increased level of aberrant behavior.
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