Which of the following statistical measures is most helpful for indicating the extent to which IQ scores can be used to predict grades in school?

Question

Quizplus · Accepted Answer

The correlation coefficient measures the strength and direction of the relationship between two variables, in this case, IQ scores and grades in school. A higher correlation coefficient indicates a stronger relationship and indicates that IQ scores can be a better predictor of grades in school. The other statistical measures do not provide information on the relationship between variables.

Which of the Following Statistical Measures Is Most Helpful for Indicating