Logical ReasoningDifficulty: Hard

PT17 S3 Q15 Explanation

Babies who can hear and have hearing

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

TopicsMust be False

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Stimulus

Babies who can hear and have hearing parents who expose them to speech begin to babble at a certain age as a precursor to speaking. In the same way, deaf babies with deaf parents who communicate with them and with each other by signing begin to babble in signs at the same the language system of signs, the analogue of repeated syllables in speech.

What this question is testing

Must be False

Your task

Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.

Common trap

Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.

Winning move

Predict what a right answer must do, then test each choice against the conclusion-evidence 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
15.

The information above, if accurate, can best be used as evidence against which one of

Answer choices

  1. Trap1% picked this

    Names of persons or things are the simplest words in a language, since babies use them before using the

  2. Correct73% picked this

    The development of language competency in babies depends primarily on the physical maturation of the vocal tract, a process

    Why this is right

    Answer B is correct.

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

  3. Trap6% picked this

    In the absence of adults who communicate with each other in their presence, babies

  4. Trap11% picked this

    In babbling, babies are unaware that the sound or gesture combinations they use can be employed

  5. Trap8% picked this

    The making of hand gestures by hearing babies who have hearing parents should be interpreted as a part

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