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2009 Aug 16
1
How to deal with multicollinearity in mixed models (with lmer)?
...7.html" which states that if not for interpretation but just for prediction, multicollinearity does not matter much. However, I am using mixed model to interpret something, so I am wondering if there is a suitable method to deal with this problem in lmer. My model is: model2<-lmer(sur_prop~(kidc+I(kidc^2)+I(kidc^3))*(byear_c+I(byear_c^2) +I(byear_c^3)+I(byear_c^4))+(byear_c|Studyparish),family=binomial) This is the maximum model and I have not begun to simplify it. The model is used to interpret the pattern how a mother's cohort year and total number of children will affect average sur...