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Measurement of consumers’ sensory discrimination and preference: Efficiency of preference-difference test utilizing the 3-point preference test precedes the same-different test

Title
Measurement of consumers’ sensory discrimination and preference: Efficiency of preference-difference test utilizing the 3-point preference test precedes the same-different test
Authors
Kim I.-A.Yoon J.-Y.Lee H.-S.
Ewha Authors
이혜성
SCOPUS Author ID
이혜성scopus
Issue Date
2015
Journal Title
Food Science and Biotechnology
ISSN
1226-7708JCR Link
Citation
Food Science and Biotechnology vol. 24, no. 4, pp. 1355 - 1362
Keywords
equivalencequality controlreformulationsensory discriminationsensory preference
Publisher
Kluwer Academic Publishers
Indexed
SCIE; SCOPUS; KCI WOS scopus
Document Type
Article
Abstract
In fast moving consumer goods industries, effective and robust sensory discrimination and preference methods need to achieve various business objectives, such as product reformulation. A new preference-difference test was designed in this study as more effective and reliable method. In this method, 3-point paired-preference test was performed before conducting same-different test. The performance of new method was compared with performances of difference-preference test and conventional pairedpreference test. Each of 256 female consumers participated in all three test methods in a counterbalanced order for discriminating two types of strawberry flavored carbonated drinks. McNemar test and Thurstonian modeling/signal detection theory (SDT) were used to compare the effectiveness of same-different tests. SDT analysis and a significance test using the concept of ‘identicality norm’ were applied to compare robustness of preference tests. The results of these analyses indicated that preference-difference test could not only provide better discrimination but also showed more robust preference results. © 2015, The Korean Society of Food Science and Technology and Springer Science+Business Media Dordrecht.
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DOI
10.1007/s10068-015-0174-0
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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