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A Formal Proof of a Paradox Associated with Cohen’s Kappa

A Formal Proof of a Paradox Associated with Cohen’s Kappa Suppose two judges each classify a group of objects into one of several nominal categories. It has been observed in the literature that, for fixed observed agreement between the judges, Cohen’s kappa penalizes judges with similar marginals compared to judges who produce different marginals. This paper presents a formal proof of this phenomenon. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Classification Springer Journals

A Formal Proof of a Paradox Associated with Cohen’s Kappa

Journal of Classification , Volume 27 (3) – Oct 8, 2010

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References (45)

Publisher
Springer Journals
Copyright
Copyright © 2010 by Springer Science+Business Media, LLC
Subject
Statistics; Marketing ; Psychometrics; Signal, Image and Speech Processing; Bioinformatics; Pattern Recognition; Statistical Theory and Methods
ISSN
0176-4268
eISSN
1432-1343
DOI
10.1007/s00357-010-9060-x
Publisher site
See Article on Publisher Site

Abstract

Suppose two judges each classify a group of objects into one of several nominal categories. It has been observed in the literature that, for fixed observed agreement between the judges, Cohen’s kappa penalizes judges with similar marginals compared to judges who produce different marginals. This paper presents a formal proof of this phenomenon.

Journal

Journal of ClassificationSpringer Journals

Published: Oct 8, 2010

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