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The data are reported in a textbook from Fleiss, probably it is fictitious.
agreem_binary
A list that contains three matrices. Each matrix contains the result of a study involving two raters. It is a binary rating scale ("+" and "-").
Fleiss, J. L., Levin, B., & Paik, M. C. Statistical Methods for Rates and Proportions, 3rd edition, 2003, ISBN 0-471-52629-0