Which of the following correlation coefficients is a researcher most likely to find between testosterone levels and performance on a mental rotation task?
A) .90
B) .00
C) .30
D) -.40

Question

Quizplus · Accepted Answer

A correlation coefficient of .30 is a reasonable expectation for the relationship between testosterone levels and performance on a mental rotation task. This suggests a low to moderate positive correlation, indicating that as testosterone levels increase, performance on mental rotation tasks may also tend to increase, but not strongly. Correlation coefficients closer to 1 or -1 (like .90 or -.40) would indicate a very strong relationship, which is less common in psychological and biological research due to the multitude of influencing factors. A correlation of .00 would indicate no relationship at all, which is also less likely given existing research suggesting some link between testosterone and spatial abilities.

Which of the Following Correlation Coefficients Is a Researcher Most