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Hi all

My statistics knowledge is fairly basic so forgive me if this is a simple question. I am using a cumulative logit model and am trying to test whether the addition of a 2nd level improves the fit of the model. Previously I have used the likelihood ratio test, but MLwiN doesn't produce this for logistic regression.

What test should I use to work this out and how do I do this in MLwiN?

Thanks

If you are fitting the model using (R)IGLS then you could use a Wald test. If you are using MCMC then you could compare the values of the DIC diagnostic.