Psychometrika

, Volume 61, Issue 1, pp 109–121 | Cite as

An alternative two stage least squares (2SLS) estimator for latent variable equations

Article

Abstract

The Maximum-likelihood estimator dominates the estimation of general structural equation models. Noniterative, equation-by-equation estimators for factor analysis have received some attention, but little has been done on such estimators for latent variable equations. I propose an alternative 2SLS estimator of the parameters in LISREL type models and contrast it with the existing ones. The new 2SLS estimator allows observed and latent variables to originate from nonnormal distributions, is consistent, has a known asymptotic covariance matrix, and is estimable with standard statistical software. Diagnostics for evaluating instrumental variables are described. An empirical example illustrates the estimator.

Key words

structural equation models covariance structure models LISREL Two Stage Least Squares 2SLS latent variables factor analysis noniterative estimators instrumental variables 

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Copyright information

© The Psychometric Society 1996

Authors and Affiliations

  1. 1.CB 3210 Hamilton, Department of SociologyUniversity of North CarolinaChapel Hill

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