MULTIDIMENSIONAL SIGNAL-DETECTION ANALYSES (MSDA) FOR TESTING SEPARABILITY AND INDEPENDENCE - A PASCAL PROGRAM

A Pascal (Turbo 6.0) program for testing perceptual separability, deci sional separability, and perceptual independence-three types of indepe ndence defined in the context of general recognition theory (GRT)-is p resented. GRT is essentially a multidimensional extension of signal de tectability theory (Green & Swets, 1966) and has been employed in comp lete-identification experimental paradigms to examine whether informat ion processing of stimulus dimensions is perceptually and/or decisiona lly separable and/or perceptually independent. The definitions of thes e different forms of ''independence'' are provided, the experimental d esign is described, and the program, MSDA, is described and demonstrat ed