For one academic year

Answer choices

1. A

   Irrelevant Comparison15% picked this

   The students who spent the most time studying earned higher grades than did some students who studied for

   This answer compares some students with other students. This type of comparison cannot support the hypothesis that compares each student to themself.

   15%
2. B

   Too Weak2% picked this

   The students tended to get slightly lower grades as the academic

   Without knowing that students spent less time studying as the year progressed, this cannot support the comparison in the hypothesis.

   2%
3. C

   Correct69% picked this

   In each course, the more a student studied, the better his or her grade was

   Why this is right

   This supports the researchers’ hypothesis because this shows that for every student additional study improved their grade. It also fits the observation, while pointing to a different comparison.

   Skill tested: Paradox · how this choice captures the argument's function is the move to repeat next time.

   69%
4. D

   Out of Scope4% picked this

   The students who spent the least time studying tended to be students with no more than average

   Extracurricular activities are not relevant to whether additional study increases a student’s chances of earning a higher grade.

   4%
5. E

   Irrelevant Comparison10% picked this

   Students who spent more time studying understood the course material better than

   This answer compares some students with other students. This type of comparison cannot support the hypothesis that compares each student to themself.

   10%