[R] linear mixed effect model with ordered logit/probit link?

[byoung-inn bai]

Hello,

I'm working on the multiple categorical data (5-points scale) using linear 
mixed effect model and wondering if anyone knows about or works on the 
linear mixed effect model with ordered logit or probit link.
I found that the "lmer" function in R is very flexible and supports 
various models, but not ordered logit/probit models. I may conduct my 
analysis by turning my DVs into nested dichotonomies, but just wonder if 
there is anyway that I can do this without transforming my DVs. Any help 
or suggestion will be greatly appreciated.

Thanks,

Byoung-Inn



Byoung-Inn Bai
Ph.D. Candidate
University of Washington
Department of Political Science
Box 353530
e-mail: bbi68 at u.washington.edu