Print Email Facebook Twitter The optimum decision rules in the same-different paradigm 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 To reference this document use: 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 Files To receive the publication files, please send an e-mail request to TNO Library.