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Paired Preference Tests: Use Of Placebo Stimuli With Liking And Buying Preferences

Title
Paired Preference Tests: Use Of Placebo Stimuli With Liking And Buying Preferences
Authors
Sung Y.-E.Lee H.-S.O'Mahony M.Kim K.-O.
Ewha Authors
김광옥이혜성
SCOPUS Author ID
김광옥scopus; 이혜성scopus
Issue Date
2011
Journal Title
Journal of Sensory Studies
ISSN
0887-8250JCR Link
Citation
vol. 26, no. 2, pp. 106 - 117
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Besides responses to the target pair of stimuli being tested in a paired preference test, comparison with responses to a putatively identical "placebo" pair can be used for a test of significance, to determine whether the response frequencies elicited by the target pair are different from those that would be obtained had there been no preference. Yet, preference responses elicited by the placebo pair can also be used as a way of identifying consumers who bias avoided the "No preference" option and thus generated biased response. Such consumers can then be eliminated. Yet, using this approach greatly reduces the sample size. However, using some response options associated with purchase intent rather than liking can reduce the number of consumers that are eliminated. This was confirmed for potato chip, milk and orange juice stimuli. From psychology, the concepts of operational preference and types of response bias appropriate to preference testing were introduced and discussed. © 2011 Wiley Periodicals, Inc.
DOI
10.1111/j.1745-459X.2011.00327.x
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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