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A measure of the degree to which 2 raters agree. There is also a test of inter-rater agreement based on kappa. Use [inter-rater] if you are interested in other aspects of IRA, but not this specific measure.
4
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Quadratic weighted kappa strength of agreement
In the case of the kappa-value there are some attempts to qualify how good or bad the agreements are. For example Landis & Koch in the article The Measurement of Observer Agreement for Categorical Dat …
11
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1
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Quadratic weighted kappa versus linear weighted kappa
When should I use quadratic weighted kappa or linear weighted kappa?
I have two observers evaluating the classes of a number of objects. The classes are fail, pass1, pass2, and excellent (ordinal sca …