August 5, 2016Open Access

Measuring inter-rater reliability for nominal data – which coefficients and confidence intervals are appropriate?

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Abstract

Fleiss' K and Krippendorff's alpha with bootstrap confidence intervals are equally suitable for the analysis of reliability of complete nominal data. The asymptotic confidence interval for Fleiss' K should not be used. In the case of missing data or data or higher than nominal order, Krippendorff's alpha is recommended. Together with this article, we provide an R-script for calculating Fleiss' K and Krippendorff's alpha and their corresponding bootstrap confidence intervals.

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Cite This Study

Zapf et al. (Fri,) studied this question.

synapsesocial.com/papers/69d7b571d84d071b73f30a52 https://doi.org/https://doi.org/10.1186/s12874-016-0200-9

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