For one academic year, all the students at a high school were observed. The aim was to test the hypothesis that studying more increased a student’s chances of earning a higher grade. It turned out that the students who spent the most time studying did not earn grades as high as did many students who studied less. Nonetheless, the researchers concluded that the results of the observation supported the initial hypothesis. Which one of the following, if true,‘most helps to explain why the researchers drew the conclusion described above?

Assorted

Option A: The students who spent the most time studying earned higher grades than did some students who studied for less time than the average.

Option B: The students tended to get slightly lower grades as the academic year progressed.

Option C: In each course, the more a student studied, the better his or her grade was in that course.

Option D: The students who spent the least time studying tended to be students with no more than average involvement in extra-curricular activities.

Correct Answer

Option: c

Explanation

Assorted

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