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Do children's number words begin noisy?

Katie Wagner1, Junyi Chu2, David Barner1

  • 1University of California, San Diego, California.

Developmental Science
|September 20, 2018
PubMed
Summary
This summary is machine-generated.

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Children first develop approximate meanings for small number words, not exact ones. The Give-a-Number task, when analyzed correctly, does not support the approximate number system hypothesis for early number word acquisition.

Area of Science:

  • Cognitive Science
  • Developmental Psychology
  • Linguistics

Background:

  • Debate exists on whether children's early number word meanings stem from an innate approximate number system or learning discrete individuals.
  • Wynn's Give-a-Number task has been central to this debate, categorizing children into 'knower levels'.
  • Past studies using this task yielded conflicting interpretations regarding the role of approximate versus discrete number representations.

Purpose of the Study:

  • To re-analyze existing Give-a-Number data to resolve discrepancies in previous findings.
  • To investigate the impact of analytical assumptions on the interpretation of Give-a-Number task results.
  • To determine the cognitive systems supporting the acquisition of exact number word meanings in children.

Main Methods:

Related Experiment Videos

  • Replicated analyses from previous studies using existing Give-a-Number data.
  • Employed simple non-parametric statistical tests and computational model simulations.
  • Assessed the validity of parametric tests commonly used with Give-a-Number data.

Main Results:

  • Differences in past study conclusions are attributable to analytical assumptions, not data variations.
  • Give-a-Number data violate assumptions of parametric tests, suggesting their unsuitability.
  • Preliminary, noisy meanings are acquired for small number words (one to four) before exact meanings are established.

Conclusions:

  • Children initially form imprecise understandings of small number words.
  • No reliable evidence suggests preliminary meanings for larger number words.
  • The Give-a-Number task is not a reliable tool for identifying signatures of the approximate number system in early number learning.