I’m teaching a course on multivariate statistics and for some of the students it’s been a minute since their last inferential statistics course.
So, I have been doing a few videos here and there to refresh, for example, what is a repeated measures ANOVA and why you might want to do it.
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I have colleagues who hate Excel with a passion. Why, they demand to know, would ANYONE use Excel for statistics when there are so many options that are so much better? Actually, I don’t find the Excel add-on for statistics that terrible, but that isn’t even the topic of this post. I use Excel because…
Today’s post courtesy of Captain Obvious … To do quintile matching, one must first match by quintiles. Hence, the name. Quintiles divide your data set into five equal, um, fifths. Quint is Latin (or Greek or some other random language) for five. Hence, the name. So, when I did this: PROC UNIVARIATE ; VAR prob…
In my analysis of data on the oldest old from the Kaiser Permanente study, I started with cigar smoking because I have a friend who turned 65 last month. His annual physical went like this: Doctor: Do you still smoke cigars? Jim: Yep. Doctor: Do you still drink 8 or 9 beers every night? Jim: Yep….
Today I was thinking about categorical modeling, I suppose other people were thinking about art, music, unicorns and bunnies, but they are not me. I was going to title this blog post “Modeling categorical data, Part 1) but two things occurred to me. The first is that no one would read a blog post named…
Since the last few posts detailed errors in repeated measures with PROC GLM , I thought I should acknowledge that people seem to struggle just as much with PROC MIXED. Forgetting data needs to be multiple rows This is one of the first points of confusion for students. When you do a PROC MIXED, you…
I’ve been looking high and low for a supplemental text for a course on multivariate statistics and I found this one – The Multivariate Social Scientist, by Graeme Hutcheson 7 Nick Sofroniou They are big proponents of generalized linear models, in fact, the subtitle is “Introductory statistics using generalized linear models”, so if you don’t…