krippendorffsalpha: An R Package for Measuring Agreement Using Krippendorff's Alpha Coefficient

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Abstract

R package krippendorffsalpha provides tools for measuring agreement using Krippendorff's a coefficient, a well-known nonparametric measure of agreement (also called inter-rater reliability and various other names). This article first develops Krippendorff's a in a natural way and situates a among statistical procedures. Then, the usage of package krippendorffsalpha is illustrated via analyses of two datasets, the latter of which was collected during an imaging study of hip cartilage. The package permits users to apply the a methodology using built-in distance functions for the nominal, ordinal, interval, or ratio levels of measurement. User-defined distance functions are also supported. The fitting function can accommodate any number of units, any number of coders, and missingness. Bootstrap inference is supported, and the bootstrap computation can be carried out in parallel.

Original languageEnglish (US)
Pages (from-to)413-425
Number of pages13
JournalR Journal
Volume13
Issue number1
DOIs
StatePublished - 2021

All Science Journal Classification (ASJC) codes

  • Statistics and Probability
  • Numerical Analysis
  • Statistics, Probability and Uncertainty

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