What’s all that factor analysis crap mean anyway? Part 1 of Several

My doctoral advisor, the late, great Dr. Eyman, used to  tell me that my psychometric theory lectures were, A light treatment of a very serious subject. Hmph. Well, with all due respect to a truly wonderful mentor, I still have to state unequivocally that the majority of students when looking at a factor analysis for…

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It’s good business to learn from people who suck: #42 of 55 things I’ve learned

Every time something annoys me, I take it as a learning experience. For example, Darling Daughter Number Three has been remiss at getting back to me lately, with the lament, “But I’m SO busy!” I understand she just finished filming a TV show and has people line up for hours to get her autograph, etc….

Factor analyzing a correlation matrix is SO easy (I am not making this up)

When I first went to graduate school in the 1970s (yes, for my MBA, in 1978) , if one were to comment casually, “And then I factor-analyzed the correlation matrix to solve that problem.” Everyone would say, “Ooooh.” Back in those days before statistical calculators (forget the Internet), when computers only came in big (really…

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Coding Tools to Make Life Easier

I was working on something for a client when The Invisible Developer walked into my office, looked over my shoulder at the code and said, “So, you’re a PHP programmer now?” I answered, “I’m a whatever-language-we-happen-to-need-at-the-moment programmer.” A year and a half ago, I took a look at Codecademy and was underwhelmed. It’s gotten mixed…