Categorical Judgment and the Wepman Test of Auditory Discrimination The notion that response bias may spuriously influence categorical judgments on discrimination tasks with unequal response alternatives was investigated using the Wepman Auditory Discrimination Test. The performance of two unselect groups of elementary school children was compared on a standardized form, containing an unequal number of two category alternates, and ... Forum
Forum  |   May 01, 1972
Categorical Judgment and the Wepman Test of Auditory Discrimination
 
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Forum   |   May 01, 1972
Categorical Judgment and the Wepman Test of Auditory Discrimination
Journal of Speech and Hearing Disorders, May 1972, Vol. 37, 252-257. doi:10.1044/jshd.3702.252
 
Journal of Speech and Hearing Disorders, May 1972, Vol. 37, 252-257. doi:10.1044/jshd.3702.252

The notion that response bias may spuriously influence categorical judgments on discrimination tasks with unequal response alternatives was investigated using the Wepman Auditory Discrimination Test. The performance of two unselect groups of elementary school children was compared on a standardized form, containing an unequal number of two category alternates, and a modified version which balanced these choices. It was predicted in line with Parducci’s range-frequency model of psychophysical judgment that the modified version would occasion a lower error score because of an intrinsic tendency to employ categories with equal frequency independent of the test stimuli. The prediction was verified, and the results were related to perceptual disorder as assessed by the Wepman Test.

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