Ivan Balducci <[EMAIL PROTECTED]> wrote:
> I would like to understand the meaning of negative Cohens Kappa value
> (1960). I got it from the following data (from Dental Radiology):
> Magnetic resonance versus Facial Pain
> Yes No
> Yes 1 4
> No 11 30
> Kappa = - 0,0422
Since Kappa is a correlation coefficient, it can go from -1 (perfect
disagreement) to +1 (perfect agreement).
The 95% confidence intervals for Kappa for this table go from
approxmately -0.3 to +0.2.
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