The Cicchetti–Allison weighting matrix is positive definite

Matthijs J. Warrens

Computational Statistics & Data Analysis, 2013, vol. 59, issue C, 180-182

Abstract: Application of Cohen’s weighted kappa for inter-rater agreement requires the specification of a weighting matrix. An explicit formula for the determinants of the principal minors of the weighting matrix with Cicchetti–Allison weights is derived. Since all determinants are strictly positive, it follows that the Cicchetti–Allison weighting matrix is positive definite.

Keywords: Cohen’s weighted kappa; Positive definiteness; Linear weights (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:csdana:v:59:y:2013:i:c:p:180-182

DOI: 10.1016/j.csda.2012.09.019

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