Gwet's AC1 has been proposed as an alternative to Cohen's kappa in evaluating the
agreement between two binary ratings. This approach is becoming increasingly popular …

Cohen's kappa and intraclass kappa are widely used for assessing the degree of agreement
between two raters with binary outcomes. However, many authors have pointed out its …

Agreement between raters on a categorical scale is not only a subject of scientific research
but also a problem frequently encountered in practice. Whenever a new scale is developed …

Cohen's kappa and weighted kappa are two standard tools for describing the degree of
agreement between two observers on a categorical scale. For agreement tables with three …

Cohen's kappa is a widely used association coefficient for summarizing interrater agreement
on a nominal scale. Kappa reduces the ratings of the two observers to a single number. With …

Scott's pi and Cohen's kappa are widely used for assessing the degree of agreement
between two raters with binary outcomes. However, many authors have pointed out its …

Cohen's unweighted kappa and weighted kappa are popular descriptive statistics for
measuring agreement between two raters on a categorical scale. With m≥ 3 raters, there …

Cohen's kappa and weighted kappa are two popular descriptive statistics for measuring
agreement between two observers on a nominal scale. It has been frequently observed in …

The κ coefficient is a popular descriptive statistic for summarizing an agreement table. It is
sometimes desirable to combine some of the categories, for example, when categories are …

The kappa statistic is commonly used for quantifying inter-rater agreement on a nominal
scale. In this review article we discuss five interpretations of this popular coefficient. Kappa is …