sweetybokhari
Forum Elite
Topics: 118
Posts: 148
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Five physicians are deliberating over whether the patient they have examined is exhibiting the auscultatory signs of mitral valve prolapse or not.Assuming that there would be agreement by chance of 50% but,in fact ,four of the five physicians actually agree on the findings,what is the choice -corrected agreement(kappa) for the clinical findings?
1) 0.8
2) 0.75
3) 0.6
4) 0.7
5) 0.5
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| bariluis
Forum Junior
Topics: 11
Posts: 39
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The answer is 3.
kappa = (observed - expected)/(1-expected)=(4/5 - 0.5)/(1-0.5)=0.3/0.5 = 0.6
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