Logical ReasoningDifficulty: Medium

PT110 S3 Q18 Explanation

A person is more likely

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

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Stimulus

A person is more likely to become disabled as that person ages. Among adults in the country of East Wendell, however, the proportion receiving disability benefit payments shrinks from 4 percent among 55 to 64 year olds to 2 percent for those aged 65 to 74 and 1 percent for those aged jobs offering such a disability benefit has greatly increased in recent years.

What this question is testing

Weaken

Your task

Find the choice that makes the argument's conclusion less likely to be true.

Common trap

Answers that look negative but attack a claim the argument never relied on.

Winning move

Find the assumption the argument depends on, then pick the choice that undermines it.

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

The question
18.

Which one of the following, if true about East Wendell, shows that the explanation above is

Answer choices

  1. No Impact7% picked this

    The treatment of newly incurred disabilities is more successful now than in the past in restoring partial function in the

    This applies to all age groups uniformly. Whether you're 55, 65, or 75 years old, if you have a newly incurred disability, you'll be somewhat back to normal sooner than before. That doesn't give us a way to explain why a higher % of 55 year olds get disability benefits than do 75 year olds.

  2. No Distinction / Too Weak11% picked this

    Some people receive disability benefit payments under employers’ insurance plans, and some receive them

    This is super weak and super vague. It says, "at least one person gets disability payment from their employer and at least one person gets a disability payment from their government." This tells us nothing about the relative ages of these people and so it gives us no way to distinguish among the age groups and posit an alternate explanation for why a bigger share of 55 year olds get disability payments than do 75 year olds.

  3. No Distinction3% picked this

    Medical advances have prolonged the average lifespan beyond what it was

    This applies to all age groups uniformly. Whether you're 55, 65, or 75 years old, medical advances are going to help you live longer than you used to be able to. That doesn't give us a way to explain why a higher % of 55 year olds get disability benefits than do 75 year olds.

  4. No Distinction7% picked this

    For persons receiving disability benefit payments, those payments on average represent a smaller share of their predisability income now than was

    This applies to all age groups uniformly. Whether you're 55, 65, or 75 years old, if you receive disability payments, they don't pay out as much (as a proportion of your earning potential) as they used to. That doesn't give us a way to explain why a higher % of 55 year olds get disability benefits than do 75 year olds.

  5. Correct71% picked this

    Under most employers’ plans, disability benefit payments stop when an employee with a disability reaches the usual

    Why this is right

    This gives us an additional way to explain why a higher % of 55 year olds get disability benefits than do 75 year olds. A 55 year old wouldn't usually be retired. A 75 year old usually would. Disability payments stop once you hit age 65, so the disabled 55 year old would still be collecting payments whereas the disabled 75 year old would not any longer be receiving payments. Thus, this gives us a way to partially explain why only 1% of 75 year olds get disability payments, while 4% of 55 year olds do. There might be a higher percent of 75 year olds who are actually disabled, but since most employer plans cut out the payments once you turn 65, they are disabled but not receiving disability payments. (If people were worried about how this answer doesn't seem to perfectly explain the 55 vs. 65 vs. 75 gradient, it doesn't need to. If it even partially explains the gradient, then it succeeds in showing that the author's explanation was incomplete. As long as we think this answer has any effect on the 4% / 2% / 1% breakdown between 55/65/75 year olds, then it's part of the explanation).

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

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