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Variants of A Not-A and 2AFC tests: Signal Detection Theory models

Title
Variants of A Not-A and 2AFC tests: Signal Detection Theory models
Authors
Hautus M.J.van Hout D.Lee H.-S.
Ewha Authors
이혜성
SCOPUS Author ID
이혜성scopus
Issue Date
2009
Journal Title
Food Quality and Preference
ISSN
0950-3293JCR Link
Citation
vol. 20, no. 3, pp. 222 - 229
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Signal Detection Theory provides an approach to modelling difference test procedures that allows an estimate of the sensory difference between products to be obtained independently of the response bias and decision strategy used by the judge, and of the test procedure used to estimate that difference. The estimate of sensory difference obtained, d′, is therefore much closer to a 'true' estimate of sensory difference than many other measures employed by sensory scientists. The methods used to generate models based on Signal Detection Theory are standard, and these methods are applied to the development of models for two test procedures (A Not-A and 2AFC) and their reminder equivalents (A Not-AR and 2AFCR). 2AFCR is procedurally identical to the duo-trio procedure with a constant reference; however, it is shown that there is more than one decision strategy available to the judge in this task. © 2008 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.foodqual.2008.10.002
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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