Here’s a little reminder for those of you checking assumptions in regression and ANOVA:

The assumptions of normality and homogeneity of variance for linear models are **not** about Y, the dependent variable. (If you think I’m either stupid, crazy, or just plain nit-picking, read on. This distinction really is important). [Read more…] about Checking Assumptions in ANOVA and Linear Regression Models: The Distribution of Dependent Variables