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TryingwithSAS
Fluorite | Level 6

So, do I have to worry about the "Quasi-Complete separation" message when running a PROC LOGISTIC, if I just care to know which variables are significant? I don't care about their estimates. Also, fyi, all my predictor variables are categorical and and are collapsed as much as it makes sense for them to be.

Thanks!

Divya

2 REPLIES 2
plf515
Lapis Lazuli | Level 10

It depends on where the separation is.  When there is quasi-complete separation, usually one variable will have very odd confidence intervals.  Those shouldn't be used. But the other ones can.  See this paper by Paul Allison

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