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Register a new userkrippendorffsalpha: An R Package for Measuring Agreement Using Krippendorffs Alpha Coefficient
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John Hughes
Publication date
2021
fields
Mathematical Statistics
and research's language is
English
Authors
John Hughes
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R package krippendorffsalpha provides tools for measuring agreement using Krippendorffs Alpha coefficient, a well-known nonparametric measure of agreement (also called inter-rater reliability and various other names). This article first develops Krippendorffs Alpha in a natural way, and situates Alpha 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 Alpha 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.
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