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Related Experiment Videos

Naturalistic language sampling in typically developing children.

Marc H Bornstein1, Kathleen M Painter, Jaihyun Park

  • 1National Institute of Child Health and Human Development, Suite 8030, 6705 Rockledge Drive, Bethesda, MD 20892-7971, USA. Marc_H_Bornstein@nih.gov

Journal of Child Language
|July 12, 2002
PubMed
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Children

Area of Science:

  • Child language acquisition
  • Developmental psychology
  • Linguistic development

Background:

  • Understanding child language development requires examining naturalistic speech samples.
  • Previous research highlights the impact of context on language production in young children.

Purpose of the Study:

  • To compare language features (utterances, word roots, MLU) in two-year-olds across three distinct home situations.
  • To investigate the influence of social interaction and maternal judgment on children's language output.

Main Methods:

  • Naturalistic observation of 30 two-year-olds in home environments.
  • Three conditions: solitary play (mother nearby), interactive play, and "optimal" language situation (mother-selected).
  • Analysis of total utterances, word roots, and Mean Length of Utterance (MLU).

Related Experiment Videos

Main Results:

  • Children produced more utterances, word roots, and higher MLU during interaction versus solitary play.
  • The "optimal" language situation yielded the highest levels of all measured language features.
  • Girls exhibited more word roots and longer MLU than boys, particularly in the "optimal" setting.
  • Children's relative language performance (rank order) remained consistent across situations.

Conclusions:

  • Context significantly impacts young children's language production, with interactive and "optimal" settings fostering greater output.
  • Maternal selection of an "optimal" situation effectively elicits richer language samples.
  • Gender differences in early language development are observable.
  • Findings underscore the importance of considering sampling methods for representative child language assessment.