multilevel model. Dependent variable is not truly interval

noetsi

Fortran must die
#1
I want to run multilevel regression. My dependent variable is a four point likert scale variable (as are predictors in most cases). Can you run multilevel models with a DV that is not classically interval (of course some argue likert scale is effectively interval, but for the moment I am not going there).

It would help if you can not readily do multilevel modeling with a 4 point DV to know what can analyze this. I am testing the result of area on satisfaction.
 

hlsmith

Not a robit
#3
For MLMs I really like the "Multilevel Models: Applications Using SAS book by Wang et al. It covers MLM multinomial models on page 147. I always find it hard to believe, but over the years I still have not conducted a multinomial logistic reg model. I know SAS also has a MLM book they print, which may have been updated in the recent years. I would imagine that book should cover the topic as well.
 

noetsi

Fortran must die
#4
thanks hlsmith. If your data is ordered will it create problems using multinomial (I believe not from my knowledge of logistic regression, but I have been wrong before).

I will look for both books. If I run this and send the results with my comments would you tell me if I interpreted it correctly :p
 

hlsmith

Not a robit
#5
I can try to help the best I can. The ordering shouldn't be a big issue as long as you select the right reference group - I think.
 

noetsi

Fortran must die
#6
I was wondering today how serious a problem it would create if I treated a 4 point likert variable as interval and used interval multilevel. Probably one of those questions no one agrees on.