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Hierarchical Classes: Model and Data Analysis

Published online by Cambridge University Press:  01 January 2025

Paul De Boeck*
Affiliation:
University of Leuven, Belgium
Seymour Rosenberg*
Affiliation:
Rutgers University
*
Requests for reprints should be sent to Paul De Boeck, Department of Psychology, University of Leuven, Tiensestraat 102, 3000 Leuven, BELGIUM; or to Seymour Rosenberg, Department of Psychology, Kilmer Campus—Tillett Hall, Rutgers University, New Brunswick, NJ 08903.
Requests for reprints should be sent to Paul De Boeck, Department of Psychology, University of Leuven, Tiensestraat 102, 3000 Leuven, BELGIUM; or to Seymour Rosenberg, Department of Psychology, Kilmer Campus—Tillett Hall, Rutgers University, New Brunswick, NJ 08903.

Abstract

A discrete, categorical model and a corresponding data-analysis method are presented for two-way two-mode (objects × attributes) data arrays with 0, 1 entries. The model contains the following two basic components: a set-theoretical formulation of the relations among objects and attributes; a Boolean decomposition of the matrix. The set-theoretical formulation defines a subset of the possible decompositions as consistent with it. A general method for graphically representing the set-theoretical decomposition is described. The data-analysis algorithm, dubbed HICLAS, aims at recovering the underlying structure in a data matrix by minimizing the discrepancies between the data and the recovered structure. HICLAS is evaluated with a simulation study and two empirical applications.

Information

Type
Original Paper
Copyright
Copyright © 1988 The Psychometric Society

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