Logical ReasoningDifficulty: Medium

PT107 S3 Q7 Explanation

Newsletter for community-center

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

TopicsFlaw

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Stimulus

Newsletter for community-center volunteers: Retired persons who regularly volunteer their time to help others generally display fewer and milder effects of aging than their nonvolunteering contemporaries: in social resources, mental outlook, physical health, economic resources, and overall functioning, they are found to be substantially stronger than nonvolunteers. Volunteering is often described as that there is evidence that it can equally benefit your own well-being!

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
7.

The inference drawn above is unwarranted

Answer choices

  1. Never a Flaw10% picked this

    the center has a self-interested motive to attract

    LSAT will never sign off on us invalidating someone's argument simply because that person would gain from their argument being true. That's actually one of the ten famous Famous Flaws, known as Ad Hominem. Also, the fact that some of these paragraphs have a speaker identified before a colon at the outset is totally irrelevant. Take any argument -- it doesn't make any difference whether it's prefaced by Lawyer: Professional Golfer: Newsletter for Exiled Mimes: Those identifiers at the beginning have never been relevant to a correct answer. We teachers don't even read them. When I first read this answer choice, I thought, "the center?" because I had never bothered to read who was saying this argument. LSAT doesn't care who the source of an argument is (beautifully, in this day and age). They only care about the substance of that source's ideas.

  2. Not a Flaw11% picked this

    it interprets “well-being” as including the factors of social and economic resources, mental outlook, physical

    You're right, (B), it does interpret things like friends, money, psychology, health, and overall functioning as parts of "well-being". Because they are. :)

  3. Out of Scope4% picked this

    some of those who do not volunteer might be older than some volunteers and so could not

    Out of Scope: considered peers This author is never saying that all volunteers are peers, so we wouldn't be objecting to anything this author said or thought by saying, "Nuh-uh. Some of them aren't peers." When the first sentence compares retired persons who volunteer to their nonvolunteering contemporaries, that means "people who are around the same age, but don't volunteer".

  4. Not an Objection2% picked this

    growing older might not necessarily result in a change in

    Was this author promising that growing older always involved a change in mental outlook? Nope. So we wouldn't be objecting to anything the author said or thought by saying, "Hey, author, there is at least one case in which growing older didn't result in a change in mental outlook". This author was only assuming that for many people volunteering resulted in a change in mental outlook.

  5. Correct73% picked this

    those with better resources, health, outlook, and functioning are more able to

    Why this is right

    When we're doing Flaw or Weaken and the argument involves a causal interpretation of a Curious Comparison, the correct answer will usually involve pointing out an Alternate Explanation for that comparison. This answer is supplying the Reverse Causality objection that volunteering doesn't cause older people to have more money / vigor / happiness / functioning. Instead, having more money / vigor / happiness / functioning enables one to volunteer, so that's why there's more health / money / happiness found among the volunteering crowd than among the nonvolunteering crowd.

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

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