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st: Model identification in Stata sem()
From
W Robert Long <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: Model identification in Stata sem()
Date
Fri, 07 Dec 2012 18:06:36 +0000
Hi Statalist
In "An Overview of Stata’s “sem” for Structural Equation Modeling" by
Bollen and Bauldry (2012)
the authors state that a limitation of sem() is in detecting
under-identified models, giving an example of a two-indicator CFA with
simulated data which is not identified, but Stata gives no warning about
that. The document can be downloaded here:
http://www.cpc.unc.edu/training/seminars/BollenBauldry%20SEM%20JAN13.pdf
Yet, here (
http://www.stata.com/capabilities/structural-equation-modeling/ ) it
states that models are checked for identification.
Could anyone clarify ?
FWIW I don't have Stata 12 (yet) so I can't check it for myself at the
moment.
Thanks !
RL
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