title: The exact variance of weighted kappa with multiple raters.
abstract: Weighted kappa described by Cohen in 1968 is widely used in psychological research to measure agreement between two independent raters. Everitt then provided the exact variance for weighted kappa for two raters. In this paper, Everitt's exact variance is extended to three or more raters.
authors.affiliation: Department of Statistics, Colorado State University, Fort Collins, CO 80523-1877, USA. mielke@lamar.colostate.edu
authors.forename: Paul W
authors.initials: PW
authors.lastname: Mielke
authors.forename: Kenneth J
authors.initials: KJ
authors.lastname: Berry
authors.forename: Janis E
authors.initials: JE
authors.lastname: Johnston
mesh_terms: D003627:Data Interpretation, Statistical; D006801:Humans; D008960:Models, Psychological; D015588:Observer Variation; D011584:Psychology / Q000706:statistics & numerical data*