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Can the same-different test use a β-criterion as well as a τ-criterion?
- Can the same-different test use a β-criterion as well as a τ-criterion?
- Lee H.-S.; van Hout D.; Hautus M.; O'Mahony M.
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- Food Quality and Preference
- Food Quality and Preference vol. 18, no. 4, pp. 605 - 613
- τ-criterion and β-criterion; Cognitive strategies; Decision rules; ROC curve; Same-different test; Signal detection
- SCIE; SCOPUS
- Document Type
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- Using low concentration NaCl and water stimuli, judges performed same-different tests and single stimulus discrimination tests. The data were subjected to a signal detection analysis. For single stimulus judgments, a β-criterion, dividing salt vs water is assumed for calculating d′. For the same-different method, a τ-criterion, a sensory yardstick designating the degree of difference required for a 'different' judgment, is assumed. ROC analysis indicated that for single stimulus judgments, a cognitive strategy involving a β-criterion was confirmed. Yet, ROC analysis for the same-different test indicated that prior or current use of a β-criterion carried over into the same-different test for some judges, giving a mixture of τ- and β-criteria. © 2006 Elsevier Ltd. All rights reserved.
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- 엘텍공과대학 > 식품공학전공 > Journal papers
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