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UNDERSTANDING DISCRIMINATION TESTS: A USER‐FRIENDLY TREATMENT OF RESPONSE BIAS, RATING AND RANKING R‐INDEX TESTS AND THEIR RELATIONSHIP TO SIGNAL DETECTION
Author(s) -
O'MAHONY M.
Publication year - 1992
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.1992.tb00519.x
Subject(s) - ranking (information retrieval) , index (typography) , detection theory , statistics , signal (programming language) , two alternative forced choice , psychology , response bias , econometrics , mathematics , audiology , computer science , artificial intelligence , detector , medicine , world wide web , programming language , telecommunications
ABSTRACT. Aproblem central to sensory difference testing is response bias. There are two experimental strategies for dealing with this problem. The first is to use forced choice procedures, like the common duo‐trio or triangle tests, while the second is to use signal detection measures like d′, P(A) and the R‐index. These strategies are explained and discussed. The relationship between the R‐index and the other signal detection measures is explained. The relationship between R‐index values obtained by rating and ranking is explored, as are the alternative computations of the R‐index by ranking: R jb and R mat .