Cohen’s kappa is a measure of agreement for Categorical data. It is a special case of the Kappa statistic corresponding to the case of only 2 raters. Historically, this statistic was invented first. Later it was generalized to the case of an arbitrary number of raters.
Statistics and data science, defined
Cohen’s Kappa
Related entries
Where this gets used
We teach data science and statistics online, one subject at a time, on fixed start dates with an instructor who marks your work.