Abstract
One group of Ss was run to a reward of 22 45-mg pellets, then shifted to one 1000-mg pellet. A second group ran to the reverse of this reward situation. A Crespi-like effect was obtained. The results pose a problem of interpretation in reward magnitude studies. Some possible approaches to the problem are considered.
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Data were eolleeted for a dissertation submitted to Tulane University. Supported by USPHS Research Grants HD-867-02 to A. A. GeraII and MH 15530-01 to SH.
An erratum to this article is available at http://dx.doi.org/10.3758/BF03332312.
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McCain, G. Different levels of performance with equivalent weights of reward. Psychon Sci 14, 2–3 (1969). https://doi.org/10.3758/BF03336393
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DOI: https://doi.org/10.3758/BF03336393