for Example 1 of Cohen’s Kappa, n = 50, k = 3 and m = 2. ![]() Let n = the number of subjects, k = the number of evaluation categories and m = the number of judges for each subject. As for Cohen’s kappa no weighting is used and the categories are considered to be unordered. ![]() ![]() Cohen’s kappa is a measure of the agreement between two raters, where agreement due to chance is factored out. We now extend Cohen’s kappa to the case where the number of raters can be more than two.
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