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  1. M

    Detecting outliers non parametric data

    Hi, what is the best (and easy) way to detect outliers in spss for skewed, not exactly normally distributed data? I mainly need it for logistic regression an I assume that even tho logistic r. does not assume normality I still need to make sure that there are no extreme outliers Thanks a lot
  2. M

    Logistic regression controlling for variables vs. layer in crosstabs

    Hi everyone, I would like to know how SPSS controls for variables in logistic regression in order to report the correct "controlled" OR. The specific case which bothers my is as follows: Lets say I have one IV tumor size which is either small tumor size or large tumor size the other IV...