1naresh
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Limitation of κ to assess the reliability of 2 raters' judgments with different prevalences in the 2 categories

PositiveRater 1 NegativeTotal (%)
Situation (a)Positive85590
    Rater 2Negative5510
    κ = 0.44Total9010100
Situation (b)Positive45550
    Rater 2Negative54550
    κ = 0.80Total5050100