R²Change is a statistic from a multiple regression which is useful in determining what? A) correlation coefficient between two tests B) place where a regression line crosses the y-axis in a regression C) amount of measurement error present in a test score D) whether adding an additional test to a test battery is justified

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R²Change, also known as change in R squared, measures the amount of variance in the dependent variable (y) that is explained by adding an additional independent variable (x) to a regression model. Therefore, it is useful in determining whether adding an additional test to a test battery is justified, as it can indicate the extent to which the new test contributes to the overall prediction of y.

R2 Change Is a Statistic from a Multiple Regression Which

R²Change Is a Statistic from a Multiple Regression Which