Regression analysis minitab9/1/2023 ![]() Use a model with a single categorical independent variable, employment category, with 3 categories: managerial, clerical, and custodial. I believe that understanding this little concept has been key to my understanding the general linear model as a whole–its applications are far reaching. When someone showed me this, a light bulb went on, even though I already knew both ANOVA and multiple linear regression quite well (and already had my masters in statistics!). So here is a very simple example that shows why. Not a quarter and a nickel–different sides of the same coin. They’re not only related, they’re the same thing. It was not until I started consulting that I realized how closely related ANOVA and regression are. My professors would often say things like “ANOVA is just a special case of Regression,” but give vague answers when pressed. If your graduate statistical training was anything like mine, you learned ANOVA in one class and Linear Regression in another.
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