Simple regression formulas should be developed when the correlation coefficient between two sets of scores falls between −.5 and +.5.

Question

Quizplus · Accepted Answer

Simple regression formulas may be used for all values of correlation coefficient, but when it is close to zero it is difficult to predict accurately. When the correlation coefficient is between −.5 and +.5, it is generally considered a weak correlation and may not justify the use of a regression formula.

Simple Regression Formulas Should Be Developed When the Correlation Coefficient