Skip to ContentSkip to Navigation
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

Last modified:06 October 2021 11.12 a.m.
View this page in: Nederlands