: A professor wants to determine the effect of test-related anxiety on exam scores in her class. She administers a measure on which higher scores indicate higher levels of test-related anxiety. After the class takes the exam, the professor records the grades (out of 90 points possible) next to the anxiety scores. Conduct a linear regression to determine whether test-related anxiety predicts exam grades. Use raw scores, not z scores, in the regression analysis. Again, there is no need to create z scores for this problem.

In this scenario, is the independent variable here test-related anxiety? So this would go in the X axis?