Title
The optimum decision rules in the same-different paradigm
Author
Dai, H.
Versfeld, N.J.
Green, D.M.
TNO Technische Menskunde
Publication year
1996
Abstract
In this paper we derive the optimum (likelihood-ratio) decision statistic for a same-different paradigm. The likelihood ratio is dependent on the degree of correlation between the two observations on each trial. For the two extreme cases in which the observations are either independent or highly correlated, the optimum decision rule is identical to each of two previously suggested decision rules. For these two cases, the receiver-operating characteristic (ROC) curves are calculated. Finally, an experimental procedure is suggested for assessing the decision rule actually used by the observer in a same-different task. © 1996 Psychonomic Society, Inc.
Subject
Perception
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http://resolver.tudelft.nl/uuid:60f94d15-0e7b-463c-bec9-d0b0c9a6e135
DOI
https://doi.org/10.3758/bf03205469
TNO identifier
463778
ISSN
0031-5117
Source
Perception & Psychophysics, 58 (1), 1-9
Document type
article