In the context of the formula for Cohen's Kappa, which of the following are correct?
A. κ = (Σfo − Σfe) / (N − Σfe)
B. fo = observed frequency
C. fe = expected frequency
D. N = overall total of data points in the frequency matrix
Choose the most appropriate answer from the options given below:
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Correct answer: D. A, B, C, D only
Explanation
Cohen's κ = (Σfo − Σfe) ÷ (N − Σfe), with fo the observed and fe the expected agreements and N the total data points.
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