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| From | Nick Darson <nick.darson@googlemail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: crossed 4-level linear analysis |
| Date | Tue, 12 Jul 2011 19:43:38 +1000 |
Juliette, I haven't used xtmixed much myself, but according to these threats it might be possible to model four levels: http://statalist.1588530.n2.nabble.com/st-Multilevel-models-Multilevel-mixed-effects-model-td3897455.html On Tue, Jul 12, 2011 at 7:34 PM, Neil Shephard <nshephard@gmail.com> wrote: > On Tue, Jul 12, 2011 at 10:24 AM, Hommes Juliette (EDUC) > <juliette.hommes@maastrichtuniversity.nl> wrote: >> L.S., >> >> With great enthusiasm I've worked with STATA but now I've come across a problem that I cannot resolve so far. Therefore I hope you can give me a hand. >> >> I've collected repeated measurements (2) in two modules. Participants enrolled in the first module and were divided in groups randomly (n=30). After finishing the first module, the participants are again randomly assigned to groups (n=32). As such I've got four levels in my data structure with "crossed"data among the students/group levels: 1) Repeated measures, 2) Modules, 3) Students, 4) Groups. >> >> I've been using the xtmixed command, but I found that it could only be used for three levelled datasets (and/or crossed data). Do you have an idea to analyse the four levels in one model and account for the crossed nature of the data in STATA? > > I'm not certain whether it can handle what you want, but you might > want to see if -gllamm- is of use here (http://www.gllamm.org/). > > Within Stata you can get a description using -ssc desc gllamm- > > Neil > > -- > “Truth in science can be defined as the working hypothesis best suited > to open the way to the next better one.” - Konrad Lorenz > > Email - nshephard@gmail.com > Website - http://kimura.no-ip.org/ > Photos - http://www.flickr.com/photos/slackline/ > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/