PT128.S2.Q11 > Question

SECTION 1 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5

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Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13

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Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21

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Question 22 Question 23 Question 24 Question 25 Question 26 Question 27 Question 28

SECTION 2 · lr

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SECTION 3 · lr

SECTION 4 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6

PASSAGE 2

Question 7 Question 8 Question 9 Question 10 Question 11 Question 12

PASSAGE 3

Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19

PASSAGE 4

Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26 Question 27

The author hypothesizes that exercise can increase life span. This is because the subjects in a study who exercised were less likely to die during the study than the subjects who didn’t exercise.

The author assumes that the correlation between exercise and good health wasn't caused by good health causing more exercise, or by a hidden third factor. For example, if people on the verge of dying didn’t exercise given their health condition, then the study wouldn’t indicate anything about the effects of exercise.

This weakens the author’s argument by bringing in a third factor: diet. Perhaps the people who didn’t die were saved by their diets rather than by exercise.

This doesn’t impact the argument without more information. For example, we don't know if the groups actually had different amounts of time available, and if so, why.

This undermines the author’s argument by indicating that people died because of their preexisting conditions rather than their lack of exercise.

In other words, there was no connection between prior health and exercise. This defends against the possibility that only already-healthy people were exercising, which strengthens.

We don’t care what usually motivates people to exercise. We care about why the study showed a difference between people who exercised and people who didn’t exercise.

PrepTest 128 - Section 2 - Question 11

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