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The Knowledge Content of Statistical Data

Published online by Cambridge University Press:  01 January 2025

Lucien Preuss
Affiliation:
Feldeggstrasse 74, Ch 8008, Zürich, Switzerland
Helmut Vorkauf*
Affiliation:
University of Fribourg and Swiss Federal Office of Public Health
*
Requests for reprints should be sent to Helmut Vorkauf, Swiss Federal Office of Public Health, Hessstrasse 27, CH 3097 Liebefeld/Bern, SWITZERLAND.

Abstract

An information-theoretic framework is used to analyze the knowledge content in multivariate cross classified data. Several related measures based directly on the information concept are proposed: the knowledge content (S) of a cross classification, its terseness (Zeta), and the separability (GammaX) of one variable, given all others. Exemplary applications are presented which illustrate the solutions obtained where classical analysis is unsatisfactory, such as optimal grouping, the analysis of very skew tables, or the interpretation of well-known paradoxes. Further, the separability suggests a solution for the classic problem of inductive inference which is independent of sample size.

Information

Type
Original Paper
Copyright
Copyright © 1997 The Psychometric Society

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