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Estimation of Thurstonian Models for Various Forced-Choice Sensory Discrimination Methods as a Form of the "M+N" Test

Title
Estimation of Thurstonian Models for Various Forced-Choice Sensory Discrimination Methods as a Form of the "M+N" Test
Authors
Bi J.Lee H.-S.O'Mahony M.
Ewha Authors
이혜성
SCOPUS Author ID
이혜성scopus
Issue Date
2014
Journal Title
Journal of Sensory Studies
ISSN
0887-8250JCR Link
Citation
Journal of Sensory Studies vol. 29, no. 5, pp. 325 - 338
Publisher
Blackwell Publishing Ltd
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Psychometric functions for discrimination tests, which connect probabilities of correct response, pc, with Thurstonian discriminal distances, d′, are of theoretical and practical significance. This paper uses a computer-intensive approach to produce simulation-derived psychometric functions for the "M+N" test, which is a generalization and can be considered as a framework of many forced-choice methods. The paper demonstrates and describes chance probabilities in different situations for the "M+N" test. The paper compares the performances of the specified and unspecified "M+N" test with the M=N test. The paper provides novel tables for pc and d′ for four specific versions of the "M+N" test: the specified "two-out-of-five" test (i.e., the "M+N" test with M=3 and N=2); the unspecified "one-out-of-four" test (i.e., the "M+N" test with M=3 and N=1); the specified and unspecified octad tests (i.e., the "M+N" test with M=N=4). The corresponding B values, for calculation of the variances of d' for the tests, are also provided. The concept and practice of pseudo-correct response, i.e., forgiveness introduced by Ennis, are discussed and generalized. © 2014 Wiley Periodicals, Inc.
DOI
10.1111/joss.12114
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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