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On Scaling Models Applied to Data from Several Groups

Published online by Cambridge University Press:  01 January 2025

Clifford C. Clogg*
Affiliation:
Departments of Sociology and Statistics, The Pennsylvania State University
Leo A. Goodman
Affiliation:
Departments of Statistics and Sociology, University of Chicago
*
Requests for reprints should be sent to Clifford C. Clogg, Department of Statistics, The Pennsylvania State University, University Park, PA 16802.

Abstract

Statistical methods are presented to facilitate a more complete analysis of results obtained when a scaling model is applied to data from two or more groups. These methods can be used to (a) compare the corresponding estimated latent distributions obtained using the scaling model applied to the different groups, (b) compare the corresponding estimated item reliabilities (or item response error rates) for the different groups, and (c) test whether the scaling model applied to the several groups can be replaced by a more parsimonious scaling model that includes various homogeneity constraints (i.e., constraints that describe which parameters in the model are the same for the several groups). Various kinds of scaling models are considered here in the multiple-group context.

Information

Type
Original Paper
Copyright
Copyright © 1986 The Psychometric Society

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