[R] lmer model with continuos non normal response variable, transformation needed?

From: arams <ale.reimos_at_gmail.com>
Date: Thu, 26 Jun 2008 09:38:50 -0700 (PDT)


I want to do an lmer model but have doubts of what family I should use. My response variable was originally a proportion, however I standarized it for each year of data collection (20 in total). After standarizing it I checked for normality with the Kolmogorov-Smirnov test, and it turns out it is not normal. It ranges from -3 to 4. Since it is no longer a proportion I can't use a binomial distribution nor a normal distribution. I'm guessing I have to transform it, but this is a variable
that has already been standarized. Anny suggestions? Thank you.

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