Which of the Following Are Reasons Why We Might NOT

Multiple Choice

Which of the following are reasons why we might NOT use a repeated measures t ?

A) It requires too many subjects.
B) It is more likely to reject a null hypothesis than the design with difference subjects in the groups.
C) Information the subjects pick up in early trials may influence their performance on later trials in ways that we don't find helpful.
D) It allows the correlation between trials to influence the results.