st: Issues of Normality for Multiple Imputation with ICE

["McDonald, Catherine" <mcdonalc@nursing.upenn.edu>]

Hello-

I am working with a small data set with missing values for which I am trying to do multiple imputation with ICE. I have some data that are non-normal. Do I have to do transformations? I have seen a reference to Schafer (Analysis of incomplete Multivariate Data 1997) that says there is evidence that imputation methods can work even when the data are not normal. But I did not know if the ICE command would be one of these methods. Is there a ref that would support leaving non-normal data as is for multiple imputation with ICE? Are there steps that I need to take? What options for transformations would be possible? 

Thank you very much-
Catherine 




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