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Paper Information

Journal:   DEVELOPMENTAL PSYCHOLOGY (JOURNAL OF IRANIAN PSYCHOLOGISTS)   WINTER 2007 , Volume 3 , Number 10; Page(s) 103 To 107.
 
Paper: 

INTERRATER AGREEMENT COEFFICIENTS

 
 
Author(s):  ZEGERS S.*
 
* UNIVERSITY OF GRONINGEN
 
Abstract: 

The degree of agreement between two or more judges who rate a number of objects on certain characteristics can be expressed by means of an association coefficient (e. g., product moment correlation, PMC). The agreement among judges can rarely be perfect. If two judges produce two identical sets of scores the PMS will attain its maximum value, which equals + 1. However, a PMC that equals + 1 does not mean that the two sets of data are exactly equal. Different judges actually make judgments only based on the relative states of individuals, objects, or phenomena, and not based on their absolute states. This article aims to introduce association coefficients that are indicative of the degree to which there is an absolute agreement and real similarity among the ratings by different judges. Some properties of the PMC in specific situations may be undesirable.
Many association coefficients have been purposed for those situations, many of which belong to the class of Euclidian coefficients. A discussion of the desirable properties of these coefficients demonstrates that how the identity coefficient and its generalizations can be used to assess the interrater agreements.

 
Keyword(s): ASSOCIATION COEFFICIENTS, CORRELATION, EUCLIDIAN COEFFICIENTS, GENERALIZED IDENTITY COEFFICIENT, INTERRATER AGREEMENT
 
References: 
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