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An analytical psychometric function for the dual reference duo-trio (DRDT) method

Title
An analytical psychometric function for the dual reference duo-trio (DRDT) method
Authors
Bi J.Lee H.-S.O'Mahony M.
Ewha Authors
이혜성
SCOPUS Author ID
이혜성scopus
Issue Date
2022
Journal Title
Food Quality and Preference
ISSN
0950-3293JCR Link
Citation
Food Quality and Preference vol. 96
Keywords
Dual reference duo-trio (DRDT) methodDuo-trio method (DT)Psychometric functionThurstonian discriminal distanceTorgerson's method of triadsTriangle method
Publisher
Elsevier Ltd
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
The dual reference duo-trio (DRDT) is an improved balanced-reference duo-trio method, in which two same references are presented in a test but the reference is changed across the tests. The performance of the DRDT has been investigated theoretically based on a simulation-derived psychometric function in a previous paper published in this journal. The DRDT method is more powerful than the conventional duo-trio and the triangle methods. This paper derives an analytical psychometric function for the DRDT. Another form of the psychometric function for the DRDT is also derived based on the Torgerson's method of triads. Tables and R codes are provided for presentations and calculations of Pc, δ (or d'), and variance of d' (B-value) based on the analytical psychometric function for the method. © 2021 Elsevier Ltd
DOI
10.1016/j.foodqual.2021.104418
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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