RESEARCH QUESTIONS THAT CAN BE ADDRESSED WITH REGRESSION COEFFICIENTS

By Associate Professor Togar A Napitupulu, Ph.D

Once a particular β is proven significant (i.e., by rejecting H0), or that the corresponding X is significantly affecting Y, researcher might be further interested in the magnitude of the β itself, estimated by β ̂. For example, we might want to compare the magnitude of the impact among those independent variables on the dependent variable. Or for that matter, we might want to compare the β corresponding to the same particular independent variable but with different dependent variable (in this case we are comparing two regression equations for example).

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