Logical ReasoningDifficulty: Medium

PT159 S3 Q12 Explanation

When the annual period of daylight saving time begins

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

TopicsStrengthen

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Stimulus

When the annual period of daylight saving time begins, and clocks are set forward one hour, many people lose an hour of sleep. On the following day, according to government statistics, the incidence of traffic accidents is 7 percent greater than the average for that time deprivation is responsible for this spike in traffic accidents.

What this question is testing

Strengthen

Your task

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

Common trap

Answers that are consistent with the argument but add no real support, or that strengthen a claim the argument doesn't make.

Winning move

Locate the gap between evidence and conclusion, then pick the choice that closes 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
12.

Which one of the following, if true, most strengthens

Answer choices

  1. Trap8% picked this

    Many people forget to set their clocks forward when daylight saving time begins and are late for appointments on the

  2. Trap6% picked this

    Traffic accidents are less common in the spring, when the annual period of daylight saving time begins, than

  3. Trap2% picked this

    The traffic accidents that occur on the day after daylight saving time begins are no

  4. Correct79% picked this

    The higher incidence of accidents is most pronounced later in the day, when sleep-deprived people tend

    Why this is right

    Answer D is correct.

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

  5. Trap4% picked this

    The effects of sleep deprivation can linger for

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