Hi listers, I am relatively new to R. I am trying to fit an HLM model in R using lme function. I''m more of an HLM user, so I have some trouble getting things done in R. So far no problems, but... (1) I would like to get SE estimates and null hypothesis tests for random effects. How can this be done? I''m reproducing the work of Singer (http://www.gse.harvard.edu/~faculty/singer/) in order to tranfer from HLM to R. However she doesn''t offer a way to do it. (2) My second question is about the possibility of specifying a crossclasified HLM model as described in Bryk and Raudenbush. Does lme function support that? Thanks for all the help... Andrej --------------------------------------- Andrej Kveder, M.A. researcher Institute of Medical Sciences Scientific Research Center Slovenian Academy of Sciences and Arts [[alternate HTML version deleted]]