Multiple Choice
If students who complete a study skills course raised their grade point averages, can we conclude that the course caused their improvement?
A) Yes, because the scientific data was collected.
B) Yes, because a negative correlation exists between these students' grade point averages before and after taking the course.
C) Yes, because the course resulted in a self-fulfilling prophecy.
D) No, because there was no control group.
Correct Answer:

Verified
Correct Answer:
Verified
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