Abstract
Two rats were reinforced with food according to pairs of concurrent variable-interval schedules. One schedule arranged reinforcement for bar-pressing, the other for chain-pulling. While a clear bias toward bar-pressing was revealed, consistent, strong undermatching also was observed. The results are largely in accord with previous experiments which have examined choice between different response topographies.
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This paper is based on part of a doctoral dissertation submitted by the author to the University of Adelaide for the degree of Ph.D. I thank F. R. DaJziel for helpful advice and comments.
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White, J.M. Bias and Undermatching in Concurrent Chain-Pull Bar-Press Performance. Psychol Rec 29, 103–109 (1979). https://doi.org/10.1007/BF03394595
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DOI: https://doi.org/10.1007/BF03394595