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Research GION education/research Research Educational research methodologies

Similarity measures

In various research applications it is frequently required that individuals or objects are pigeonholed, that is, they are classified into categories. To compare two classifications researchers use so-called similarity and association measures. These coefficients are formulas that express in a number the similarity or association between two classifications. A value of 1 usually indicates perfect similarity, whereas 0 reflects no similarity. In my research I study properties of various types of measures using algebra and analysis. Examples are Cohen’s kappa, weighted kappa, Cronbach’s alpha and the adjusted Rand index.

Staff members

Matthijs Warrens
Alexandra de Raadt
Roel Bosker
Henk Kiers
Last modified:17 April 2020 2.00 p.m.
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