Multiple Choice stats question. Somone help, please? 10 points.?

In an experiment, the score of any subject on the criterion variable may reflect:





A. the ability or proficiency on the criterion task


B. the effects of the experimental variable


C. random error


D. all of the above


E. none of the above

Multiple Choice stats question. Somone help, please? 10 points.?
I think it is B.
Reply:D hes right
Reply:I believe it is a.
Reply:A is the correct answer; all other ones can be easily ruled out.
Reply:The answer is D. A is obviously true, B is the entire reason for doing the experiment, C is always a possiblity, E can't be true because A,B,C are true. That only leaves D.