Error variance can be significantly reduced by adding a second independent variable that might be affecting the DV.

Name: Error variance can be significantly reduced by adding a second independent variable that might be affecting the DV.
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Quizplus · Accepted Answer

Adding a second independent variable that is related to the dependent variable can help explain more of the variance in the DV and reduce error variance. This is a technique used in multiple regression analysis.

Error Variance Can Be Significantly Reduced by Adding a Second