Multilevel random effects in xtmixed and sem — the long and wide of it
28 September 2011
6 comments
xtmixed was built from the ground up for dealing with multilevel random effects — that is its raison d’être. sem was built for multivariate outcomes, for handling latent variables, and for estimating structural equations (also called simultaneous systems or models with endogeneity). Can sem also handle multilevel random effects (REs)? Do we care?
This would be a short entry if either answer were “no”, so let’s get after the first question. Read more…