LSAT 124 – Section 1 – Question 22

LSAT 124 - Section 1 - Question 22

December 2007

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Question QuickView	Type	Tags	Answer Choices	Curve	Question Difficulty	Psg/Game/S Difficulty	Explanation
PT124 S1 Q22	+LR	Flaw or descriptive weakening +Flaw	A 3% 161 B 6% 159 C 4% 155 D 24% 161 E 63% 166	147 158 169	+Harder	146.495 +SubsectionMedium

Doctor: Being overweight has long been linked with a variety of health problems, such as high blood pressure and heart disease. But recent research conclusively shows that people who are slightly overweight are healthier than those who are considerably underweight. Therefore, to be healthy, it suffices to be slightly overweight.

Summarize Argument

The doctor concludes that being slightly overweight is sufficient for being healthy. She supports this by citing recent research that shows that slightly overweight people are healthier than those who are very underweight.

Identify and Describe Flaw

This is the flaw of confusing a relative and an absolute property; the author assumes that a relative relationship proves an absolute property.

In this case, the doctor assumes that being slightly overweight makes one healthy just because it's relatively healthier than being very underweight. But a person could still be slightly overweight and unhealthy, even if they're healthier than someone who's very underweight.

ignores medical opinions that tend to lead to a conclusion contrary to the one drawn

The doctor acknowledges the fact that being overweight has long been linked with a variety of health problems. She just goes on to conclude that being slightly overweight is sufficient for being healthy.

never adequately defines what is meant by “healthy”

The doctor never defines the term “healthy,” but she doesn’t need to. So (B) doesn’t describe why her reasoning is flawed.

does not take into account the fact that appropriate weight varies greatly from person to person

The doctor is talking about being overweight and underweight; she doesn’t address appropriate weight at all. Either way, this doesn’t affect her argument; she’s likely aware that appropriate weight varies from person to person.

holds that if a person lacks a property that would suffice to make the person unhealthy, then that person must be healthy

The doctor never makes a claim about “a property that would suffice to make a person unhealthy,” much less claim that lacking such a property would make one healthy. Instead, she makes a claim about a property that would suffice to make one healthy— being slightly overweight.

mistakes a merely relative property for one that is absolute

The author mistakes a merely relative property— being healthier than someone else— for one that is absolute— being healthy. But a person could still be slightly overweight and unhealthy, even if they're healthier than someone who's very underweight.

LSAT 124 – Section 1 – Question 22

LSAT 124 - Section 1 - Question 22

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LSAT PrepTest 124 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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