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 is a statistical measure that indicates the strength and direction of the linear relationship between two variables. In this case, we can use it to determine the extent to which IQ scores and grades in school are related. A strong positive correlation would suggest that higher IQ scores are associated with higher grades, while a weak or negative correlation would suggest that IQ scores are not a good predictor of school grades. The mean, standard deviation, and range are measures of central tendency and variability, but they do not provide information about the relationship between two variables.

Which of the Following Statistical Measures Is Most Helpful for Indicating