PT151.S2.Q13 > Analytics

SECTION 1 · 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 Question 13 Question 14

PASSAGE 3

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

PASSAGE 4

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

SECTION 2 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 3 · lr

SECTION 4 · lr

Scientists began citing an even smaller group of sources once they had easier access to a larger group of sources.

The right answer will be a hypothesis that explains why scientists ended up using a narrower range of sources after getting access to a larger range of sources, rather than diversifying their sources. This explanation must account for some motivation to use fewer sources as a result of having more ability to access and sort through many sources.

Even if the most authoritative journals were among the first to offer online access, the stimulus states that the move online gave access to more journals overall. We need to know why scientists chose not to use these sources.

If anything, this makes the outcome more surprising—if prolific authors are accessing journals online, why aren't they diversifying their sources? We still don't know.

If scientists generally cite people they know, then they probably aren’t citing the same articles as their peers at different institutions. Also, this doesn't explain what changed with online access.

The existence of new scientific journals doesn’t change much—if anything, it just means there are even more sources available. We don’t even know when these journals went online. This doesn't help us.

So scientists can specifically search for eminent articles to cite, rather than sifting through journals like they used to. This explains why there’s now less variety in the articles scientists choose to cite.

Question

88% of people who answer get this correct

This is a slightly challenging question.

CURVE

Score of students with a 50% chance of getting this right

25% 128

138

75% 149

Question Stem Tags

Resolve reconcile or explain

Stimulus Tags

Net effect

Popularity Avg. score

154

152

153

149

88%

161

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PrepTest 151 - Section 2 - Question 13

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