Second, the same terms are used differently in different fields or research situations. So the listener may be reading into the subtle distinctions that the speaker may not be implying. So someone may use “predictor variable” and “independent variable” interchangably and another person may not. Unfortunately, though, there are two practices that make them more confusing than they need to be.įirst, they are often used interchangeably. There are subtle distinctions in the meanings of these names. The variables on the right hand side can have many forms and are called by many names. On the right hand side is one or more predictor variables, X, and their coefficients, B. ![]() ![]() On the left side of the equation is one or more response variables, Y. Statistical models, such as general linear models ( linear regression, ANOVA, MANOVA), linear mixed models, and generalized linear models ( logistic, Poisson, regression, etc.) all have the same general form.
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