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Explanations

PT23.S2.Q2

SECTION 1 · 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

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

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

SECTION 4 · rc

PASSAGE 1
Question 1 Question 2 Question 3 Question 4 Question 5

PASSAGE 2
Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13

PASSAGE 3
Question 14 Question 15 Question 16 Question 17 Question 18

PASSAGE 4
Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

PrepTest 23 - Section 2 - Question 2

Question

Explanation

Analytics

Show analysis

Veterinarian: A disease of purebred racehorses that is caused by a genetic defect prevents afflicted horses from racing and can cause paralysis and death. ████ █████ ████████ ████████ ████ ███████ ███ ███████ ███ ████ ████ ███████ █████████████ ██████ ████ ████ ██████ ██████ ███ ██ █████ ███ ████ ███ █████ ████████ ██ ████ ██████ ███ ████████ ██ ███ ███████ ███ ██ ██████████ ██ ████ ███ ███████████ ███ ███ ██████ ████ ████████ ██████ ██ ███████ ██████ ████ ███ ██ █████ ██████ ██ ███ █████ ████ █████████

The Main Point: Let’s Breed Some Diseased Horses!

Here’s the main conclusion of the veterinarian’s response:

[The horse breeders] are wrong [when they say horses with [the genetic defect that causes disease] should not be bred].

The conclusion as it reads in the stimulus is just “they are wrong,” but it’s critical to puzzle out the full meaning of that phrase before heading into the answer choices.

Doing so means tracking down the various referentials. Who are they? What are they wrong about? Oh they’re wrong about horses with “this defect” – what defect?

Approaching Main Point Questions

Upon reading this question stem, a few important guidelines should come to mind. They are:

As we read the stimulus, we’re just looking for the main point of the veterinarian’s response. Everything else is secondary.
Wrong answer choices will either express that main point inaccurately, express a different claim (like a premise), or both.

This approach significantly narrows our focus in both the stimulus and the answer choices, saving a ton of time and mental energy.

Analysis by MichaelWright

Show answer

The point of the veterinarian's ████████ ██ ███ █████ ████████ ██ ████ ██████████ █████████ ██ █████ ███ ██ ███ ██████████

Racehorses that have ███ ███████ ██████ ████ ███ ██ █████████ ████ ███████

(A) expresses the main point inaccurately. It reads great up until the word racing. Swap “racing” to “breeding” and (A) is right.

There should not ██ ██ ████████ ███ ██ ████████ ██████████ ████ ████ ███ ███████ ███████

(B) matches our anticipation well. If the horse breeders are wrong when they say horses with the generic defect should not be bred, that means it’s sometimes okay to breed horses with the genetic defect.

Racehorses that are ████████ █████████ ████ ███ ███████ ████ ███ ████ ████████ ████ ███ ██████ █████

(C) inaccurately expresses a premise. You should probably spot the premise thing first – the vet’s claim about diet and whatnot acts as support for the conclusion.

But it’s inaccurate, too, because it’s so strongly worded: diet can control the disease in most cases, not all cases.

The best way ██ ███████ ██████████ ██ ███████ ██████ ██ ██ █████ ██████ ████ ████ ███ ███████ ███████

(D) inaccurately expresses a premise. You should probably spot the premise thing first – the vet’s claim about beauty and whatnot acts as support for the conclusion.

But it’s inaccurate, too, because of the part about how the best way to produce beautiful horses is through the defect. That “best” notion isn’t supported by the stimulus.

There should be ██ ███████████ ███████ ████████ ██████████ ████ ████ ███ ███████ ████ ███ ██ ██████████ ██ ████ ███ █████████

(E) expresses the main point inaccurately. It reads great except for the phrase any disease, which creates a broad principle applying to diseases in general. The vet’s argument is just about this one disease.

Difficulty

Question

85% of people who answer get this correct

This is a moderately difficult question.

CURVE

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

25% 131

145

75% 159

Analysis

Question Stem Tags

Main conclusion or main point

Answer Popularity

Popularity Avg. score

159

85%

169

158

157

12%

164

Question history

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