This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Schafer, W. D. Search for Related Content Social Bookmarking                         What's this?

Assessment of Dispersion in Categorical Data

University of Maryland

Four separate approaches to the problem of assessing variation in categorical data are developed, each of which results in an identical index of dispersion (D). An unbiased sample estimator of D is pre sented, which bears an analogy with the common unbiased sample estimator of variance for quantitative data. An additional index, re lated to a measure of entropy for categorical data, is mentioned and some applications are discussed.

Educational and Psychological Measurement, Vol. 40, No. 4, 879-883 (1980)
DOI: 10.1177/001316448004000409


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This article has been cited by other articles:

				G. S. Braswell and K. K. Rosengren Decreasing variability in the development of graphic production International Journal of Behavioral Development, June 1, 2000; 24(2): 153 - 166. [Abstract] [PDF]