Kappa coefficient of agreement on a single rating category, KSC, with its associated test of statistical significance, is proposed as a measure of the interrater agreement where a single item or object is rated by multiple raters. A goodness-of-fit approach is used to test the statistical significance of all Kappasc beyond chance agreement.
References
1.
FleissJ. L. (1981) Statistical methods for rates and proportions. New York: Wiley. P. 217.
2.
SzalaiJ. P. (1993) The statistics of agreement on a single item or object by multiple raters. Perceptual and Motor Skills, 77, 377–378.