What are Independent and Dependent Variables?

To understand the concept of independent and dependent variables, one should understand the meaning of variables.

Independent variables are variables that are manipulated or are changed by researchers and whose effects are measured and compared. The other name for independent variables is Predictor(s). The independent variables are called as such because independent variables predict or forecast the values of the dependent variable in the model.

The dependent variables refer to that type of variable that measures the effect of the independent variable(s) on the test units.

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