AN ALTERNATIVE AGREEMENT STATISTICS WITH LINEAR WEIGHT BETWEEN ORDINAL CATEGORICAL MEASUREMENTS

Year 2010, Volume: 39 Issue: 1, 97 - 107, 03.07.2019

Mustafa Semiz Bengü Ocak

Abstract

Accurate and precise measurement is an important issue in any study
and in any scientific area. Weighted kappa, proposed by J. Cohen
(Weighted kappa: Nominal scale agreement with provision for scaled
disagreement or partial credit, Psychological Bulletin 70, 213–220,
1968) is the most common and widely preferred coefficient for measuring agreement between two ordinally measured categorical variables.
This article presents an alternative agreement coefficient between ordinal categorical measurements. The proposed coefficient takes values
between 0 and 1. Therefore, the interpretation and the calculation of
the proposed coefficient are also very simple. An SPSS Syntax program
for the proposed coefficient and the weighted kappa is presented.

Keywords

Weighted kappa, Rater agreement, Proportion of exact agreement, Gamma statistics

References

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