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A generalization of the uniform association model for assessing rater agreement in ordinal scales

机译：统一关联模型的通用性，用于评估序数表中的评分者一致性

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摘要

Recently, the data analysts pay more attention to the assessment of rater agreement, especially in areas of medical sciences. In this context, the statistical indices such as kappa and weighted kappa are the most common choices. These indices are simple to calculate and interpret, although, they fail to describe the structure of agreement, particularly when the available outcome has an ordinal nature. In the previous decades, statisticians suggested more efficient statistical tools such as diagonal parameter, linear by linear association and agreement plus linear by linear association models for describing the structure of rater agreement. In these models, the equal interval scores are the common choice for the levels of the ordinal scales. In this manuscript, we show that choosing the common equal interval scores does not necessarily lead to the best fit and propose a modification using a power transformation for the ordinal scores. We also use two different data sets (IOTN and ovarian masses data) to illustrate our suggestion more clearly. In addition, we utilize the category distinguishability concept for interpreting the model parameter estimates.
机译：最近，数据分析人员更加重视评估者协议的评估，尤其是在医学领域。在这种情况下，统计指标（例如kappa和加权kappa）是最常见的选择。这些指数很容易计算和解释，尽管它们无法描述协议的结构，特别是当可用结果具有序数性质时。在过去的几十年中，统计学家提出了更有效的统计工具，例如对角线参数，线性关联和协议线性关系以及线性关联模型用于描述评估者协议的结构。在这些模型中，等间隔分数是顺序量表级别的常见选择。在此手稿中，我们表明选择共同的等间隔分数不一定会导致最佳拟合，并建议对序数分数使用幂变换来进行修改。我们还使用两个不同的数据集（IOTN和卵巢质量数据）来更清楚地说明我们的建议。另外，我们利用类别可区分性概念来解释模型参数估计。

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  • 来源
    《Journal of applied statistics》 |2010年第8期|P.1265-1273|共9页
  • 作者

    Alireza Akbarzadeh Bagheban; Farid Zayeri;

  • 作者单位

    Department of Biostatistics and Clinical Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University, M.C., Qods Sq. (Tajrish), First of Darband Street, Tehran, Iran;

    Department of Biostatistics and Clinical Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University, M.C., Qods Sq. (Tajrish), First of Darband Street, Tehran, Iran;

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  • 正文语种 eng
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  • 关键词

    rater agreement; association model; log-linear model; ordinal scales;

    机译：评级者协议;关联模型;对数线性模型顺序秤;

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