Properties of Bangdiwala’s B

Matthijs J. Warrens () and Alexandra Raadt ()
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Matthijs J. Warrens: University of Groningen
Alexandra Raadt: University of Groningen

Advances in Data Analysis and Classification, 2019, vol. 13, issue 2, No 7, 493 pages

Abstract: Abstract Cohen’s kappa is the most widely used coefficient for assessing interobserver agreement on a nominal scale. An alternative coefficient for quantifying agreement between two observers is Bangdiwala’s B. To provide a proper interpretation of an agreement coefficient one must first understand its meaning. Properties of the kappa coefficient have been extensively studied and are well documented. Properties of coefficient B have been studied, but not extensively. In this paper, various new properties of B are presented. Category B-coefficients are defined that are the basic building blocks of B. It is studied how coefficient B, Cohen’s kappa, the observed agreement and associated category coefficients may be related. It turns out that the relationships between the coefficients are quite different for $$2\times 2$$ 2 × 2 tables than for agreement tables with three or more categories.

Keywords: Interrater reliability; Interobserver agreement; Category coefficients; $$2\times 2$$ 2 × 2 tables; Cohen’s kappa; 62H20; 62P10; 62P15 (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s11634-018-0319-0

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