The Cicchetti–Allison weighting matrix is positive definite

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.

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Year of publication:	2013
Authors:	Warrens, Matthijs J.
Published in:	Computational Statistics & Data Analysis. - Elsevier, ISSN 0167-9473. - Vol. 59.2013, C, p. 180-182
Publisher:	Elsevier
Subject:	Cohen’s weighted kappa \| Positive definiteness \| Linear weights

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10010595086