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Suppl-1, M5: High Agreement and High Prevalence: The Paradox of Cohen’s KappaDOI: 10.2174/1874434601711010211 Keywords: Agreement statistics, Cohen's Kappa, Gwet’s AC1, Concordance analysis, Inter-rater agreement, Quality assessment of RCT Abstract: Cohen's Kappa is the most used agreement statistic in literature. However, under certain conditions, it is affected by a paradox which returns biased estimates of the statistic itself
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