Multiple regression will be more precise than unit weighting if there is a small number of predictors, low correlations between predictors, and a large sample.

Question

Quizplus · Accepted Answer

Multiple regression is more precise than unit weighting when all predictors are not equally important and have varying correlations with the outcome variable. When there is a small number of predictors and the correlations between them are low, multiple regression can capture this complexity and provide a more accurate prediction. Additionally, a larger sample size can improve the precision of multiple regression estimates. Therefore, option A is correct.

Multiple Regression Will Be More Precise Than Unit Weighting If