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Re: st: Clustered, longitudinal data with ordinal outcome

From   Stas Kolenikov <>
Subject   Re: st: Clustered, longitudinal data with ordinal outcome
Date   Thu, 9 Jun 2011 16:22:42 -0500

As such, GLLAMM sees data as flat. There's a country-specific effect,
but that's it. It is essentially a random effect only model. Putting
something like AR(1) structure in the residuals is extremely

On Thu, Jun 9, 2011 at 3:09 PM, Wayne Sandholtz <> wrote:
> I have panel data for about 140 countries, with yearly observations for each
> country.  The panels are unbalanced (more years for some countries than
> others), but for each country the years are continuous (no missing years in
> the middle).  The dependent variable is ordinal (1 - 5).
> I am using GLLAMM to take into account the within-group dependence of
> observations.  My question is, does GLLAMM take into account the
> longitudinal nature of the within-group data?  Or do I need to include a
> time variable in the model in order for the estimation to take into account
> the time-ordered nature of the observations?
> Or is there another model that I should consider?
> Many thanks for any help,
> Wayne Sandholtz
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Stas Kolenikov, also found at
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