Many students have a difficult time understanding standardization when starting out in learning statistics. Common questions often include:
- What does standardized mean?
- How do you standardize a score?
- Why should I give a damn?
The answers are fairly straightforward. Here’s a rundown for your statistical woes.
Not too long ago, I wrote an article here about advanced procedures for examining interactions in multiple regression. As I described some of the challenges researchers commonly face in trying to examine differences between people in a data set, I argued that when it comes to data analysis, splitting a continuous variable into a dichotomy (i.e. two categories) is kind of a dumb idea (MacCallum et al, 2002). Continue reading
During my undergraduate years I spent large segments of my working week learning SPSS. Much of it was trial and error (ok, mostly error), but in my trials I recall one consistent experience. An experience that is familiar to many other students, I’m sure.