I hate SQL. This is probably completely irrational, like that guy I turned down for a date in junior high school who my mom always tells me founded a very successful company and is making piles of money. No wait, it wasn’t irrational, he always tried to copy off me in Algebra, plus he was…
How can you combine data sets with different variable lengths, different unique identifiers, in a different format than last year? It’s easy.
As I said in my last post, repeated measures ANOVA seems to be one of the procedures that confuses students the most. Let’s go through two ways to do an analysis correctly and the most common mistakes. Our first example has people given an exam three times, a pretest, a posttest and a follow up…
When I teach students how to use SAS to do a repeated measures Analysis of Variance, it almost seems like those crazy foreign language majors I knew in college who were learning Portuguese and Italian at the same time. I teach how to do a repeated measures ANOVA using both PROC GLM and PROC MIXED….
So, after three posts of recoding, creating scales, checking reliability and distributional assumptions we have arrived at MANOVA. If you skipped those three posts, feel shame at trying to take shortcuts, go back and read them. Before we dive into coding, let’s take a look at some basic background on MANOVA. The difference between ANOVA…
Hopefully, you have read my Beginner’s Guide to Propensity Score matching or through some other means become aware of what the hell propensity score matching is. Okay, fine, how do you get those propensity scores? Think about this carefully for a moment, if you are using quintiles, you are matching people by which group they…
To be honest, when I first began studying statistics social justice never entered the equation. Like most people in America, I think, I was concerned about problems like crime, poverty, low educational attainment of minority groups. Like most people, my concern didn’t translate into much actual effort on my part. No, I took my first…
Since I already called my mom on Mother’s Day, I thought that I’d talk about another woman who was important in my life, a mentor, who I probably haven’t talked to in 20 years. (I know, I’m such an ungrateful bitch. ) Dr. Jane Mercer was not even in the same department as me. My dissertation was…
How common is a particular disease or condition? It depends on what you mean by common. Do you mean how many people have a condition, or do you mean how many new cases of it are there each year? In other words, are you asking about the probability of you HAVING a disease or of you GETTING…
In the 20-day blogging challenge, the prompt for day seven was “Share a classroom management tip. What is one thing you do that works?” My initial thought was that I teach graduate school and if you are still having classroom management problems by then, either you or the student have a real issue. It happens,…