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    How robust is Pearson's Correlation to Normality violations?

    Hi Guys, I can't seem to find a definitive answer to this question: can one run a Pearson's correlation on data that is not normal (but has no outliers). Some texts say you need to obey this assumption, other authors say that it is robust. The problem is, is that my data is negatively skewed...
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    Moderated Regression Non-Signficant but Subgroup Correlation Significant??

    Hi Guys, I'm having a bit of trouble trying to figure out some of my statistics and wonder if any one has some ideas for me? I've run a moderated regression analysis as I've read in many places that it is the best way to approach moderation, but it was not significant. I then divided my...