A recent article in an educational research journal reports a correlation of +.8 between math achievement and overall math aptitude for a large sample of students. It also reports a correlation of of -.8 between math achievement and a math anxiety test for the same group of students. Only students with scores on all three measures were included in the study. Which of the following interpretations is the most correct?
Answer
A. The correlation of +.8 indicates a stronger a relationship than the correlation of -.8
B. The correlation of +.8 is just as strong as the correlation of -.8
C. It is impossible to tell which correlation is stronger
D. The correlation of -.8 indicates a stronger a relationship than the correlation of +.8