Kappa statistics a method of measuring agreement in dental examinations

Abstract Statistical methods have always been the solution to medical problems. Due to the problem of inconsistency in the diagnosis of dentists, the statistical science has been provided for measuring the compatibility of diagnosis and reliability of dentists. One of the most important statistical methods for examining the agreement between the two experiments or diagnosis is Kapa statistics that can be used in dental sciences. The present study examined different type of Kappa statistics for assessing agreement, including Cohen's kappa, Fleiss' kappa and Cohen's weighted kappa.