[R-sig-ME] confidence intervals for random slopes

[Veronika Bokony]

Dear all,
thank you very much for the responses. With Ben Bolker's example I can now 
calculate the SD for each of my random slopes. I have one remaining 
question though: how do I turn these into SE? Do I use the sample size per 
each level of random factor? (I have different sample size for 
each "subject".) Or is it more tricky with these mixed models?
Thanks and bests,
Veronika