Moderators and Mediators: The Epicycles of the Social Sciences

For over one thousand years, the ptolematic model of the universe dominated Western and Islamic astronomy. All that most people remember about the theory (and often only characteristic they ever learned) is that it placed the earth at the center of the universe, with the planets, sun, and moon all orbiting the earth. This is…

Open source textbooks: You get what you pay for

I’m stretching myself this summer by teaching, for the first time ever(!), an introduction to psychology course. This is quite a change for me; for over a decade, I have only taught upper-division or graduate-level courses. Now, I’m teaching students who are early in their college career, and (because the class is a general education…

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