One of Psychology's Better Known Findings Is That Performance Is

Multiple Choice

One of psychology's better known findings is that performance is good at moderate levels of arousal and poor at both high and low levels of arousal (Yerkes-Dodson) . Which of the following is true?

A) the strength of this relationship can best be assessed with Pearson's r
B) this is an example of a positive linear correlation
C) this is an example of a negative linear correlation
D) a Pearson's r for this relationship would be close to zero