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A measure of interrater absolute agreement for ordinal categorical data

Author

Listed:
  • Giuseppe Bove

    (Università “Roma Tre”)

  • Pier Luigi Conti

    (Università ‘La Sapienza”)

  • Daniela Marella

    (Università “Roma Tre”)

Abstract

A measure of interrater absolute agreement for ordinal scales is proposed capitalizing on the dispersion index for ordinal variables proposed by Giuseppe Leti. The procedure allows to overcome the limits affecting traditional measures of interrater agreement in different fields of application. An unbiased estimator of the proposed measure is introduced and its sampling properties are investigated. In order to construct confidence intervals for interrater absolute agreement both asymptotic results and bootstrapping methods are used and their performance is evaluated. Simulated data are employed to demonstrate the accuracy and practical utility of the new procedure for assessing agreement. Finally, an application to a real case is provided.

Suggested Citation

  • Giuseppe Bove & Pier Luigi Conti & Daniela Marella, 2021. "A measure of interrater absolute agreement for ordinal categorical data," Statistical Methods & Applications, Springer;Società Italiana di Statistica, vol. 30(3), pages 927-945, September.
    • Handle: RePEc:spr:stmapp:v:30:y:2021:i:3:d:10.1007_s10260-020-00551-5
    DOI: 10.1007/s10260-020-00551-5
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    References listed on IDEAS

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    1. Raffaella Piccarreta, 2001. "A new measure of nominal-ordinal association," Journal of Applied Statistics, Taylor & Francis Journals, vol. 28(1), pages 107-120.
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