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INVESTIGATION OF THE DUAL‐PAIR METHOD AS A POSSIBLE ALTERNATIVE TO THE TRIANGLE AND SAME‐DIFFERENT TESTS
Author(s) -
ROUSSEAU BENOÎT,
O'MAHONY MICHAEL
Publication year - 2001
Publication title -
journal of sensory studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 53
eISSN - 1745-459X
pISSN - 0887-8250
DOI - 10.1111/j.1745-459x.2001.tb00294.x
Subject(s) - dual (grammatical number) , test (biology) , protocol (science) , statistics , mathematics , memory test , computer science , algorithm , cognition , psychology , medicine , biology , art , paleontology , alternative medicine , literature , pathology , neuroscience
Previous experiments have shown that the same‐different test, because of its more suitable cognitive strategy and lower memory requirements, is a more powerful and sensitive alternative to the triangle and duo‐trio tests. This project describes an experiment conducted in order to investigate ways to improve further the performance of the same‐different test. Three protocols were compared using orange flavored beverages and 24 judges: the same‐different method, the triangle test and the dual‐pair paradigm. The latter protocol could improve the same‐different's performance by preventing the spontaneous variations of the judges’τ criterion. While no significant differences were detected among the d’ values obtained with each procedure, a trend was observed for the same‐different and dual‐pair test to be slightly more sensitive (higher d’ values) than the triangle test. Since the same‐different test is statistically more powerful, it is a preferable choice over the triangle, duo‐trio and dual‐pair tests.