Maria Bonanomi wrote:
How can I retrive the estimates of random-effects paramaters after using the
xtmixed command? I would like to use the estimates to calculate intraclass
correlation coefficients. I also want to apply a bootstrap routine to
calculate ICC confidence intervals.
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They're returned in e(b), along with the coefficients for the fixed effects.
See -help ereturn-. Note that you'll need to exponentiate the values.
According to the help file for -xtmixed-, bootstrapping is allowed. For
how, see -help prefix- or -help bootstrap-. I'd be curious to see how well
it works here.
There are several helpful discussions of intraclass correlation in
S. Rabe-Hesketh & A. Skrondal, _Multilevel and Longitudinal Modeling Using
Stata_ (College Station, Texas: Stata Press, 2005).
Joseph Coveney
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