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…
I was going to write more about reading JSON data but that will have to wait because I’m teaching a biostatistics class and I think this will be helpful to them. What’s a codebook? If you are using even a moderately complex data set, you will want a code book. At a minimum, it will…
Sometimes data changes shape and type over time. In my case, we had a game that was given away free as a demo. We saved the player’s game state – that is, the number of points they had, objects they had earned in the game, etc. as a JSON object. Happy Day! The game became…
When I was young and knew everything, I would frequently see procedures or statistics and think, “When am I ever going to use THAT?” That was my thought when I learned about this new procedure to transpose a data set. (It was new then. Keep in mind, I learned SAS when I was pregnant with…
I know people who are so obsessive about testing and validating their code to the point they spend more time on testing it than actually writing it and analyzing the output. I said I know people like that, I didn’t say I was one of them. However, it is good practice to validate your SAS…
Some people believe you can say anything with statistics. I don’t believe that is true, unless you flat out lie, but if you are a big fat liar, I am sure you would lie just as much without statistics. However, a point was made today when Marshall and I were discussing, via email, our presentation…
Are you still re-ordering your factor pattern by sorting columns in Excel? Well, do I have a tip or two for you. The cool thing about some large conferences is that even the things you hadn’t planned on attending can be worth while. For example, during one time slot, I didn’t have anything particular scheduled…
The first time I went to SAS Global Forum, over 30 years ago, it was actually called SUGI (SAS Users Group International) and it was in Reno, NV. I was a just-divorced single mom and there was no such thing as a Working Mothers Room (which I noticed signs for here in Denver). I paid…
I’m going to be speaking at SAS Global Forum about the places you can go starting your career with SAS, for example … If you know anything about SAS, you might think from the title that I used my mad data analysis skills to figure out what works and what doesn’t for games. While that…
I was supposed to be teaching statistics to undergraduate Fine Arts majors this semester but I’m going to Santiago to open a Latin American office for 7 Generation Games instead. I’m a bit disappointed because even though when I was younger and got asked at cocktail parties what I did for a living, I would…