Proceedings chapter
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A mathematical insight into the size of infant vocabularies

Published inProceedings of the 31st Annual Conference of the Cognitive Science Society, Editors Taatgen, N. and van Rijn, H, p. 437-442
Presented at Amsterdam (Netherlands), July 29-August 1, 2009
PublisherAustin, TX : Cognitive Science Society
Publication date2009

For the last twenty years, many researchers interested in language acquisition have quantified the receptive and productive vocabulary of infants using CDIs – checklists of words filled in by the caregiver. While it is generally accepted that the caregiver can reliably say whether the infant knows and/or produces a given word, we lack an estimate for words that are not listed on CDI. In this study, we provide a mathematical model providing a link between CDI reports and a more plausible estimate of vocabulary size. The model is constrained by statistical data collected from a population of infants and is validated on a longitudinal study comparing diary report with CDI measures.

  • Vocabulary size
  • early word learning
  • vocabulary overlap
  • vocabulary spurt
Affiliation Not a UNIGE publication
Citation (ISO format)
MAYOR, Julien, PLUNKETT, Kim. A mathematical insight into the size of infant vocabularies. In: Proceedings of the 31st Annual Conference of the Cognitive Science Society. Amsterdam (Netherlands). Austin, TX : Cognitive Science Society, 2009. p. 437–442.
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Proceedings chapter
  • PID : unige:22692

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