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On the Investigation of Local Identifiability: A Counterexample

Published online by Cambridge University Press:  01 January 2025

A. Shapiro*
Affiliation:
University of South Africa
M. W. Browne
Affiliation:
University of South Africa
*
Reprint requests should be addressed to Alexander Shapiro, Department of Mathematics, University of South Africa, P. O. Box 392, 0001 Pretoria, Republic of South Africa.

Abstract

An assertion that the parameters of a covariance structure are locally identified at a certain point only if the rank of the Jacobian matrix at that point equals the number of parameters, is shown to be false by means of a counterexample.

Type
Notes And Comments
Copyright
Copyright © 1983 The Psychometric Society

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Footnotes

The authors are indebted to Dr. R. P. McDonald for constructive comments on an earlier draft of this note.

References

Reference Note

Shapiro, A. On local identifiability in the analysis of moment structures. Submitted for publication.Google Scholar

References

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