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<p>The interrater agreement of ratings on a nominal scale regarding a group of targets (individuals, objects, etc.) is usually computed by kappa-type indices. Recently, a homogeneity index for a qualitative variable was considered to define a single target measure of agreement between raters for each target, and to propose a global measure of agreement for the whole group of targets allowing to overcome limitations affecting traditional kappa-type indices. In this paper, the sampling properties and the asymptotic distribution of the proposed index are investigated. Finally, a simulation study is performed to demonstrate the accuracy of the index and an application to real educational data is provided.</p>

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Statistical inference for indices of interrater agreement based on a homogeneity index

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月15日

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  • Giuseppe Bove,
  • Daniela Marella

摘要

The interrater agreement of ratings on a nominal scale regarding a group of targets (individuals, objects, etc.) is usually computed by kappa-type indices. Recently, a homogeneity index for a qualitative variable was considered to define a single target measure of agreement between raters for each target, and to propose a global measure of agreement for the whole group of targets allowing to overcome limitations affecting traditional kappa-type indices. In this paper, the sampling properties and the asymptotic distribution of the proposed index are investigated. Finally, a simulation study is performed to demonstrate the accuracy of the index and an application to real educational data is provided.