Errors in Repeated Measures ANOVA – let me count the ways

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

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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

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Repeated measures with SAS: Common mistakes in PROC GLM

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

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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

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Where I’ve Been and Malware

I cannot believe that it’s been over two months since I’ve written a post. That is the longest I’ve gone in the ten years I have been writing this blog. I read somewhere that the

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I cannot believe that it’s been over two months since I’ve written a post. That is the longest I’ve gone in the ten years I have been writing this blog. I read somewhere that the

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No, a stolen iPhone isn’t a brick: How thieves access your data

Stop and read this. It may save you whole lot of grief and panic. Maybe you’ve heard that a stolen iPhone is nothing more than a brick. Perhaps you feel as if your data is

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Stop and read this. It may save you whole lot of grief and panic. Maybe you’ve heard that a stolen iPhone is nothing more than a brick. Perhaps you feel as if your data is

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SUPER BASIC INTRODUCTION TO DATA ANALYSIS

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

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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

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Reading JSON data saved in a column and other SAS string function tricks

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

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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

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SAS Proc Transpose – how have I not written about this before?

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

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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

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Quick SAS debugging: Log + logic

I was reminded today how useful a SAS log can be, even when it doesn’t give you any errors. I’m analyzing data from a study on educational technology in rural schools. The first step is

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I was reminded today how useful a SAS log can be, even when it doesn’t give you any errors. I’m analyzing data from a study on educational technology in rural schools. The first step is

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PROC COMPARE FOR VALIDATING SAS CODE

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

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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

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You can’t “exactly” tell anything with statistics

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

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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

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