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Re: st: How to assign class membership in latent growth curve (SEM)


From   Austin Nichols <austinnichols@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: How to assign class membership in latent growth curve (SEM)
Date   Fri, 12 Apr 2013 17:02:36 -0400

Mark Ward <wardm2@tcd.ie>:
http://www.stata.com/statalist/archive/2009-02/msg00568.html
http://www.andrew.cmu.edu/user/bjones/
(no warranty of fit expressed or implied)

Shouldn't you have gestational age at birth and add that to age?

On Fri, Apr 12, 2013 at 4:54 PM, Mark Ward <wardm2@tcd.ie> wrote:
> Dear Statalisters,
>
> I am new to SEM (using 12.1) and relatively new to stata having made
> the jump from SPSS some months ago.
>
> I am attempting to develop a latent growth curve model (within the SEM
> framework) in order to examine weight(Kg) trajectories for children. I
> have 3 time points (birth, 9 months, and 3 years). For now I am using
> a sub-set of my data with no covariates. My thinking here is to begin
> with as simple a model as possible and gradually build on this.
>
> I have built a model using a sub-set (n=200) of my data:
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