Abstract
A Pascal (Turbo 6.0) program for testing perceptual separability, decisional separability, and perceptual independence—three types of independence defined in the context of general recognition theory (GRT)—is presented. GRT is essentially a multidimensional extension of signal detectability theory (Green & Swets, 1966) and has been employed in complete-identification experimental paradigms to examine whether information processing of stimulus dimensions is perceptually and/or decisionally separable and/or perceptually independent. The definitions of these different forms of “independence” are provided, the experimental design is described, and the program, MSDA, is described and demonstrated.
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This work was partially supported by Grant OPG0121280 from NSERC of Canada. The author gratefully acknowledges the helpful suggestions of Roger Graves and William Lee on an earlier draft of this paper.
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Kadlec, H. Multidimensional signal detection analyses (MSDA) for testing separability and independence: A Pascal program. Behavior Research Methods, Instruments, & Computers 27, 442–458 (1995). https://doi.org/10.3758/BF03200443
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DOI: https://doi.org/10.3758/BF03200443