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Transformation to Achieve a Longitudinally Stationary Factor Pattern Matrix

Published online by Cambridge University Press:  01 January 2025

Stephen L. Bieber*
Affiliation:
Departments of Statistics and Psychology, University of Wyoming, Laramie
William Meredith
Affiliation:
University of California, Berkeley
*
Requests for reprints should he sent to Stephen L. Bieber, Department of Statistics, University of Wyoming, Laramie, WY 82071.

Abstract

Meredith's method of extracting a factorially invariant solution is adapted to longitudinal settings. An explorational estimation procedure is presented which attempts to identify the longitudinal factor components of an across occasion variance-covariance matrix. This is effected by transforming an initial factor pattern matrix to stationarity. The estimation is performed in two parts, the first employing a stepwise algorithm to ascertain the dimensionality and existence of the longitudinal components and the second being the direct estimation of the existing factor pattern.

Information

Type
Original Paper
Copyright
Copyright © 1986 The Psychometric Society

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