Logical ReasoningDifficulty: Medium

PT134 S2 Q23 Explanation

Principle: It is healthy for children

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsFlaw

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Stimulus

Principle: It is healthy for children to engage in an activity that promotes their intellectual development only if engaging in that from their social development.

Application: Although Megan's frequent reading stimulates her intellectually, it reduces the amount of time she spends interacting with other people. Therefore, it is not healthy much as she does.

What this question is testing

Flaw

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that gap.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
23.

The application of the principle is most vulnerable to criticism on which one of

Answer choices

  1. Not a Misinterpretation5% picked this

    It misinterprets the principle as a universal claim intended to hold in all cases without exception, rather than

    Principles, if they're worded conditionally like this one, are universal claims intended to hold in all cases without exception. A generalization would be something like, "Activities that detract from your social development tend to be unhealthy". That sort of principle isn't intended to hold in all cases. But a claim structured with only if does not tolerate exceptions.

  2. Unrelated to Goal4% picked this

    It overlooks the possibility that the benefits of a given activity may sometimes be important enough to outweigh

    We're supposed to be commenting on how the Application failed to trigger the Principle (because there's a difference between "less time spent interacting with people" and "detracting from social development"). This answer feels like an objection to the conclusion. "Hey, what do you mean it's not healthy! Just because it detracts from her social development, it still has enough blessings that it's worth it!" This would be a critique of the conclusion, or a critique of the principle itself, but we're supposed to be critiquing the application, i.e. how the evidence failed to trigger the principle.

  3. Not a Misinterpretation11% picked this

    It misinterprets the principle to be, at least in part, a claim about what is unhealthy, rather than solely a

    This principle is absolutely about what is unhealthy. It says: "if an activity detracts from social development, then it is unhealthy for children to engage in it"

  4. Correct72% picked this

    It takes for granted that any decrease in the amount of time a child spends interacting with others detracts

    Why this is right

    This calls out the missing link between the left side (trigger) of the Principle and the evidence of the Application. evidence reading so much reduces time spent interacting with others trigger the activity detracts from the child's social development As this answer says, the author is assuming that "if it reduces time spent interacting with others, then it detracts from social development".

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

  5. Wrong Flaw: not Necessary vs. Sufficient8% picked this

    It takes a necessary condition for an activity's being healthy as a sufficient condition for

    This is describing the famous flaw in which an author provides a conditional statement in the premise and then applies it illegally in a backwards or opposite fashion to get to her conclusion. This author didn't try to go backwards or inverted with a conditional statement. She's using it in its proper order. She just hasn't established the trigger of "detracting from social development".

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