[R] random effects mixed model, different regressors

[Fensis]

Hi everybody,

I have built a model that includes subject ID as a random effect, and has a
continous variable (time) and I want to test whether the slope of this line
differs between treatments (this is tested with the interaction between
treatment and "time").

My question now is that I also want to include regressors that might explain
variation in this slope between subjects (and of which I have this one
estimate for the whole time period). How do I do this? If I just code it as
the same number for all the time points I have measured I am overestimating
my sample size don't I? (because I have not measured it for each time
point).

I am curious as to what you think about this

Thank you very much  

Greetz
-- 
View this message in context: http://www.nabble.com/random-effects-mixed-model%2C-different-regressors-tp18750857p18750857.html
Sent from the R help mailing list archive at Nabble.com.