Which of the assumptions listed below are necessary in order for the coefficients in a partial regression equation to be interpreted as the average change in the criterion variable associated with a unit change in the appropriate predictor variable holding other predictor variables constant?
A) The predictor variables must be correlated.
B) The variance among predictor variables must be equal.
C) The criterion variable must be normally distributed.
D) The predictor variables must be uncorrelated.
E) None of the above are necessary assumptions.

Question

Quizplus · Accepted Answer

The assumption necessary for interpreting coefficients in a partial regression equation as the average change in the criterion variable is that predictor variables must be uncorrelated, ensuring that the effect of each predictor is isolated.

Which of the Assumptions Listed Below Are Necessary in Order