Because I am no fun at all, as any of my children can tell you, I do not have a post for April Fool’s Day (although you should totally check out the blog on SAS for the Wii ). Being counter-cyclical can be good at times, for example, making money on your investments last year….
All right, well maybe they are not that secret, but there are some really great resources out there that you may want to check out. If you didn’t get to the SPSS Higher Education Road Show at UCLA because rush hour in Los Angeles is from 7-9, 4-6 and any time you are on the…
You know that feeling after Thanksgiving dinner when you have had all of your favorite foods all at once and are so full that you think you will never eat again. Well, the past week has left my brain like that. Within twelve days, I attended the SPSS Higher Education Road Show at UCLA, then…
Since I have written about odds ratios and logs lately, I was going to write about the natural log of the odds ratio, however, random events have caused me to do otherwise. I read an interesting blog by Adam Jackson lately, in which he is concerned that robots will take over the world. At the…
Logistic regression is based on logarithms. Ordinary Least Squares regression and analysis of variance uses the actual values as the dependent and independent variables in an equation. Logistic regression does not. What is a log, anyway? Let’s start with the very basics. First we learned to add: 5+5+5+5 = 20 After about eight years of…
I was going to write about the log of odds ratios and explain logarithms. This is the very, very odd fact I have noticed in most of social science – people in doctoral programs are often thrust into statistics course for which they really don’t have the basic mathematical foundation. This is because if they…
Going from the phi coefficient to odds-ratios. Remember the numerator for the phi coefficient was well, the odds ratio is the same two numbers DIVIDED rather than subtracted. You might think it is four numbers, but really it is not. The first number is the product of the diagonal cells (see below). The second number…
Yes, I am the F-word – a feminist. I was at a faculty meeting this weekend and one of the presenters began by saying, pointing to a colleague in the audience, “I am sure Dr. Y knows more about this than me.” Several times in her presentation on analysis of assessment data she would pause…
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…
It was 85 degrees in soCal today. Just thought I would rub that in for the benefit of my former and present colleagues in the frozen north. The advantage of having a blog as opposed to doing an on-line course is that I can just randomly switch subjects, which in my office is referred to…