Abstract
In general, nonlinear models such as those commonly employed for the analysis of covariance structures, are not globally identifiable. Any investigation of local identifiability must either yield a mapping of identifiability onto the entire parameter space, which will rarely be feasible in any applications of interest, or confine itself to the neighbourhood of such points of special interest as the maximum likelihood point.
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The author would like to thank J. Jack McArdle and Colin Fraser for their comments on this paper.
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McDonald, R.P. A note on the investigation of local and global identifiability. Psychometrika 47, 101–103 (1982). https://doi.org/10.1007/BF02293855
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DOI: https://doi.org/10.1007/BF02293855