[ADMB Users] NLMM Model Selection

[dave fournier]

Something that has always bothered me about this random effects stuff is 
that if
I fit a model with a neg bin dist it is just a parametric model with one 
more parameter than
a Poisson with a Poisson at the end. I can do standard LR tests and 
random effects never come up.
But that is just because one can do the integration analytically so that 
the RE nature or
interpretation never comes up. How can that be?  Why are other RE models 
different?