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Cohen’s kappa is the most widely used descriptive measure of interrater agreement on a nominal scale. A measure that has repeatedly been proposed in the literature as an alternative to Cohen’s kappa is Bennett, Alpert and Goldstein’s S. The latter measure is equivalent to Janson and Vegelius’ C and Brennan and Prediger’s kappan. An agreement table can be collapsed into a table of smaller size by partitioning...
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