Logical ReasoningDifficulty: Medium

PT17 S3 Q20 Explanation

Morton: In order to succeed in

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

TopicsFlaw

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Stimulus

Morton: In order to succeed in today’s society, one must have a college degree. Skeptics have objected that there are many people who never completed any education beyond high school but who are nevertheless quite successful. This success is only apparent, however, does not have enough education to be truly successful.

What this question is testing

Flaw

Conclusion

Morton claims you need a college degree to succeed.

Opposing Point

Critics push back: That seems like a real problem for Morton.

Evidence

Morton's response is to say: those people only seem successful — they are not truly successful, because true success requires a college degree.

Evaluate

Notice what just happened. Morton needed to prove that you must have a college degree to succeed. To answer the counterexamples, Morton said: But that is the very claim we were trying to establish. Morton just used the conclusion as the reason to dismiss the counterexamples.

That is like arguing, You have not proven anything — you have just defined the counterexamples out of existence.

Goal

Find the answer that captures this circular move.

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

The question
20.

Morton’s argument is flawed because

Answer choices

  1. Correct75% picked this

    assumes what it sets out to

    Why this is right

    "Assumes what it sets out to conclude" is the textbook description of circular reasoning. Morton needs to prove that a college degree is required for success. When confronted with counterexamples, Morton says they are "only apparent" because true success requires a college degree — which is the conclusion itself, used as the reason for dismissing the evidence against it.

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

  2. Causal Flaw7% picked this

    mistakes a correlation for a

    Morton does not mistake correlation for causation. There is no causal claim being established from a statistical pattern. Morton's argument is definitional and circular, not causal.

  3. Sampling2% picked this

    draws a highly general conclusion from evidence about

    This describes an over-generalization from a small sample, but Morton does not generalize from individual cases at all. Morton starts with a universal claim ("one must have a college degree") and dismisses individual counterexamples to it. The structure runs the opposite direction from what this answer describes.

  4. Bad Description12% picked this

    fails to consider the status of

    Morton does not fail to consider the alleged counterexamples — Morton explicitly addresses them, calling their success "only apparent." The problem is not that Morton ignored the counterexamples but that the reason Morton gives for dismissing them is circular. This answer mischaracterizes what Morton actually did.

  5. Inappropriate Appeals4% picked this

    bases its conclusion on the supposition that most people believe in

    This describes an appeal to popular belief — concluding something is true because most people believe it. Morton makes no reference to popular opinion or belief. The argument relies entirely on Morton's own restated definition of true success, not on what most people think.

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