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Wh-questions: Moving beyond the first Phase.

Jill G de Villiers1, Peter A de Villiers, Thomas Roeper

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|August 23, 2011
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Summary

This study introduces a feature-checking theory for wh-movement, explaining how children acquire complex grammar. It finds that children with Specific Language Impairment (SLI) face challenges, while African American English (AAE) speakers show an advantage in handling indirect questions.

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Area of Science:

  • Linguistics
  • Developmental Psychology
  • Child Language Acquisition

Background:

  • Wh-movement in language acquisition presents challenges for children.
  • Existing theories struggle to explain both adult grammar and developmental pathways.
  • Specific Language Impairment (SLI) and dialectal variations (AAE vs. MAE) impact wh-movement processing.

Purpose of the Study:

  • To present a feature-checking theory of wh-movement.
  • To account for the acquisition of long-distance movement, indirect questions, and partial movement in child language.
  • To test predictions regarding SLI and dialectal differences in wh-question comprehension.

Main Methods:

  • Empirical study of 590 children (4-9 years old), including typically developing and language-impaired groups.
  • Participants represented both African American English (AAE) and Mainstream American English (MAE) speaking backgrounds.
  • Data collected via wh-question answering tasks following story stimuli, part of a new language assessment instrument.

Main Results:

  • Children with SLI demonstrated persistent difficulties with long-distance movement and medial wh-complementizer questions.
  • AAE-speaking children exhibited an advantage, avoiding partial movement errors.
  • AAE dialect's characteristic inversion in indirect questions facilitates comprehension.

Conclusions:

  • The feature-checking theory successfully accommodates developmental data and linguistic variations.
  • SLI impacts the processing of complex wh-movement structures.
  • Dialectal features in AAE provide a processing advantage for certain wh-question types in child language acquisition.