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Size matters: Early vocabulary as a predictor of language and literacy competence

LEE, JOANNE·2011·Applied Psycholinguistics

Abstract

This paper investigated the predictive ability of expressive vocabulary size and lexical composition at age 2 on later language and literacy skills from ages 3 through 11. Multivariate analysis of covariance was performed to compare 16 language and literacy outcomes between children with large expressive vocabulary size at 24 months (N= 1,073) and those with smaller expressive vocabulary size. Comparisons between large and small verb size groups as a measure of lexical composition were also conducted. Our findings indicate that, after controlling for gender, birth order, ethnicity and socioeconomic status, total vocabulary size at age 2 can significantly predict subsequent language and literacy achievement up to fifth grade. Moreover, vocabulary size is a better predictor of later language ability than lexical composition.

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Metadata

Authors
LEE, J.
Venue
Applied Psycholinguistics
Published
2010-10-07
Volume
32
Issue
1
Pages
69-92
ISSN
  • 0142-7164 (ISSN-L)
  • 1469-1817
OpenAlex
W2111076280
Cited by
298
References
4
FWCI
12.01
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Size matters: Early vocabulary as a predictor of language and literacy competence. https://app.cochat.ai/papers/10.1017/s0142716410000299
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LEE, J. (2011). Size matters: Early vocabulary as a predictor of language and literacy competence. Applied Psycholinguistics. https://doi.org/10.1017/s0142716410000299

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.