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Re: st: Hierarchical CFA problem
From
"JVerkuilen (Gmail)" <[email protected]>
To
[email protected]
Subject
Re: st: Hierarchical CFA problem
Date
Mon, 22 Apr 2013 08:32:04 -0500
On Mon, Apr 22, 2013 at 4:31 AM, W Robert Long <[email protected]> wrote:
The key is in the lavaan output:
> L1 0.192 0.170
> L2 0.709 0.107
> L3 0.272 0.069
> G 0.617 0.183
Notice how small the variance of L1 is, and how large its SE is. This
is indicative of a log-likelihood that is close to being irregular, in
this case probably having a mode at or close to 0 for L1's variance.
L3 has a slightly higher variance but a markedly lower standard error,
which means it has a proper peak. While you shouldn't use these
standard errors to compute hypothesis tests or confidence intervals,
they are highly indicative of problems with a model. So I'm not
surprised difficult cleaned things up.
(lavaan is a nice piece of kit, by the way.)
--
JVVerkuilen, PhD
[email protected]
“He uses statistics as a drunken man uses lamp-posts – for support
rather than illumination.”--Andrew Lang
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