Multiple regression always results in greater prediction accuracy than simple regression.

Question

Quizplus · Accepted Answer

Multiple regression does not always result in greater prediction accuracy than simple regression. In some cases, simple regression may be more accurate if the relationship between the dependent variable and a single independent variable is strong and there is no multicollinearity among the variables. However, multiple regression can be more useful when there are multiple independent variables that are related to the dependent variable and there is potential multicollinearity.

Multiple Regression Always Results in Greater Prediction Accuracy Than Simple