Abstract
Two groups of pigeons were trained to respond to a black vertical line on a VI 30-sec reinforcement schedule. Responses to a black line oriented 15 deg to the right of verical were extinguished. One group was tested for generalization along the angularity dimension after 0, 6, and 12 postcriterion discrimination sessions. The second group was tested once after 12 postcriterion sessions. The slope of the absolute generalization gradient steepened about S+ with repeated testing. The data provided little support for a within-test steepening effect.
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These data are based on a major research paper submitted to the Department of Psychology, University of Windsor, by T. A. Clarkson in partial fulfillment of the requirements for the MA. This paper is sponsored by Abram Amsel, who takes editorial responsibility for its contents.
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Hirota, T.T., Clarkson, T.A. Stimulus generalization following intradimensional discrimination training: Between- and within-test comparisons. Bull. Psychon. Soc. 2, 3–5 (1973). https://doi.org/10.3758/BF03327694
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DOI: https://doi.org/10.3758/BF03327694