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Difficulty: MediumInferences from the Text

In languages featuring grammaticalized evidentiality—where grammatical morphemes obligatorily encode the speaker's source of information, such as direct perception, inference, or hearsay—early theorists hypothesized that child speakers would develop epistemic source monitoring significantly earlier than speakers of languages like English, which encode evidence primarily through discrete lexical items. However, comparative studies of Turkish-speaking and English-speaking children demonstrated that although Turkish toddlers master morphological markers for direct visual experience by age two, their ability to reliably differentiate inferential evidence from hearsay does not consolidate until approximately age four—the same developmental milestone observed in English-speaking cohorts.

Which one of the following is most strongly supported by the passage?

  1. The existence of obligatory morphological markers for evidence in a language does not intrinsically accelerate a child's conceptual ability to distinguish among indirect sources of information.Answer
  2. B
    English-speaking children develop an understanding of direct visual evidence at a significantly slower rate than children acquiring a grammaticalized evidential language.
  3. C
    Children acquiring non-evidential languages rely on formal academic schooling rather than natural language acquisition to master source monitoring.
  4. D
    Grammaticalized evidential systems cause children to confuse logical inference with hearsay until neurological maturation is completed at age four.
  5. E
    Cognitive development in early childhood is entirely independent of all cultural and environmental factors.

Answer

The statement that obligatory morphological markers do not intrinsically accelerate a child's conceptual distinction between indirect sources of information is most strongly supported.
The correct answer accurately reflects the empirical counterevidence presented: although Turkish has grammaticalized evidential morphology and children produce direct markers early, their capacity to differentiate inferential evidence from hearsay matures at age four, identical to English speakers who lack such morphology. This logically supports that having these morphemes does not speed up the cognitive capacity to distinguish between indirect sources.

Step-by-Step Solution

1
Identify the initial theoretical hypothesis described in the passage.
The initial hypothesis was that grammaticalized evidential morphemes would cause children to develop epistemic source monitoring earlier than English speakers.
Establishing the initial premise clarifies what the empirical findings were evaluating.
2
Analyze the empirical findings contrasting Turkish and English speakers.
Although Turkish speakers produce direct visual markers early (age two), both cohorts distinguish inferential evidence from hearsay at the same age (age four).
This empirical comparison reveals that morphology does not speed up the conceptual milestone for indirect evidence.
3
Evaluate the answer choices to find the statement that must follow without unwarranted extrapolations.
The choice expressing that obligatory grammatical markers do not accelerate conceptual differentiation of indirect sources matches the passage directly.
LSAT inference questions require selecting the answer that is strictly entailed or most directly supported by the text.

Key Concept

Drawing conservative inferences regarding the relationship between linguistic structure and cognitive developmental milestones.
Estimated Time:1m 30s
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Inferences from the Text

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