Abstract
Three commonly used measures of performance in forced-choice experiments, all called proportion correct, are compared as response bias, bias in the stimulus outcomes, and level of performance are varied. No position is taken on the question of which is the computational version of choice, but some of the characteristics of the various versions are examined.
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The preparation of this paper was supported in part by a grant from the Graduate School of the University of Texas. Preliminary drafts were read and criticized by J. P. Egan, D. S. Emmerich, H. Ermey, D. J. Foss, E. R. Hafter, G. H. Jacobs, and L. A. Jeffress.
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McFadden, D. Three computational versions of proportion correct for use in forced-choice experiments. Perception & Psychophysics 8, 336–342 (1970). https://doi.org/10.3758/BF03212604
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DOI: https://doi.org/10.3758/BF03212604