st: Model identification in Stata sem()

[W Robert Long <W.R.Long@leeds.ac.uk>]

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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