Using the multiple regression equation to predict the dependent variable using values of independent variables outside of the range of the original sample can lead to unreliable results.

Question

Quizplus · Accepted Answer

This is because the relationship between the independent variables and the dependent variable, as established within the range of the original sample, may not hold outside that range. This phenomenon is known as extrapolation and can lead to inaccurate predictions.

Using the Multiple Regression Equation to Predict the Dependent Variable