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From | SURYADIPTA ROY <sroy9163@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | st: Right skewed (positive) dependent variable |
Date | Thu, 10 Jun 2010 09:53:25 -0400 |
Hello everyone, I have a question relating to right skewed dependent variables, and would very much appreciate some guidance here. My dependent variables are heavily right skewed, and originally a logarithmic transformation did not help with the normality of the (conditional) distribution of the residuals. I transformed the dependent variables using - ladder - (indicate that it did a logarithmic transformation also) and after carrying out the regressions find that the residuals are normally distributed, -ovtest- and -linktest- do not indicate any unexplained variation, the level of significance in all cases are significantly higher, and the explanatory variable of interest is coming out to be strongly significant in most cases (all good news!?) I am wondering if someone could suggest me as to how much faith I can have in the regressions, and why did my original transformation did not yield the same results as - ladder- . Thank you! Suryadipta. * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/