Properties of Bangdiwala's B

Matthijs J. Warrens*, Alexandra de Raadt

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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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 2x2 tables than for agreement tables with three or more categories.

Original languageEnglish
Pages (from-to)481-493
Number of pages13
JournalAdvances in Data Analysis and Classification
Volume13
Issue number2
DOIs
Publication statusPublished - Jun-2019

Keywords

  • Interrater reliability
  • Interobserver agreement
  • Category coefficients
  • 2 x 2 tables
  • Cohen's kappa
  • COHENS KAPPA
  • AGREEMENT
  • INEQUALITIES
  • RELIABILITY
  • PREVALENCE

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