Cluster analysis of distributions: Development and demonstration of a method

Kostal, J. W., Wiernik, B. M.
Multivariate Behavioral Research, 50(1), 137

In this study, we develop an extension of cluster analysis to enable the comparison of objects across the entirety of multiple score distributions, rather than merely the distribution means. Although this procedure has many potential uses, one area of particular interest is its application in the development of test norms for psychological assessment batteries.