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Consumer context-specific sensory acceptance tests: Effects of a cognitive warm-up on affective product discrimination

Title
Consumer context-specific sensory acceptance tests: Effects of a cognitive warm-up on affective product discrimination
Authors
Kim M.-A.Dessirier J.-M.van Hout D.Lee H.-S.
Ewha Authors
이혜성
SCOPUS Author ID
이혜성scopus
Issue Date
2015
Journal Title
Food Quality and Preference
ISSN
0950-3293JCR Link
Citation
Food Quality and Preference vol. 41, pp. 163 - 171
Keywords
Affective product discriminationCognitive Reflection TestCognitive warm-upContextualized sensory acceptance testRange effects
Publisher
Elsevier Ltd
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
For simple hedonic ratings, product range effects often limit the reliability and accuracy of consumer affective discriminations among multiple products. In the present study, a cognitive warm-up (CWU) procedure was applied to consumer acceptance tests in order to stabilize consumers' evaluative criteria by evoking their personal evaluation context. The effects of such procedure on the robustness of the affective product discriminations were investigated using two sets of comparison experiments, each using a related samples design. Consumers with equivalent sensory preference profile for skin lotions were screened and divided into High Reflection Thinkers (HRT) and Low Reflection Thinkers (LRT) using the Cognitive Reflection Test. They were then randomly, but evenly assigned to either a treatment (Group I) or a control (Group II) group, in which hedonic rating was performed either with or without the preceding CWU procedure, thus forming four sub-groups (treatment group-HRT, treatment group-LRT, control group-HRT, and control group-LRT subjects). For each sub-group, discriminability between the two chosen products in terms of d' value was compared across the two experimental conditions consisting of different product ranges. The results indicated that only in the control group-LRT subjects, the two conditions displayed different product discrimination. It suggests that for LRT subjects who are assumed to be more intuitive and thus might be more vulnerable to such product range effects, the CWU had a stabilizing effect on the evaluative criteria, resulting in more robust product discrimination. © 2014 Elsevier Ltd.
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DOI
10.1016/j.foodqual.2014.11.019
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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