Which of the Following Is NOT True of Correlational Studies

Multiple Choice

Which of the following is NOT true of correlational studies?

A) A correlation can be either positive or negative.
B) Behaviour is not manipulated, but rather quantitatively measured and analyzed statistically.
C) They are frequently carried out where experimental manipulation is impossible or unethical.
D) They measure the degree of relationship between two variables.
E) They generally do not require a large number of participants.