Evidence map›Paper›PMID 38283538›Full record

ArticleFirst language2024

Sometimes larger, sometimes smaller: Measuring vocabulary in monolingual and bilingual infants and toddlers.

Krista Byers-Heinlein, Ana Maria Gonzalez-Barrero, Esther Schott, Hilary Killam

Abstract read
In one paragraph

Article in First language, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. On markers of linguistic impairment in autism and their implementation.Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Review
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  12. Infants' Knowledge of Individual Words: Investigating Links Between Parent Report and Looking Time.Infancy : the official journal of the International Society on Infant Studies
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Krista Byers-HeinleinConcordia University, Canada.ORCID https://orcid.org/0000-0002-7040-2510
Ana Maria Gonzalez-BarreroConcordia University, Canada.
Esther SchottConcordia University, Canada.
Hilary KillamConcordia University, Canada.

Funding

Navigating two languages: Effects of everyday language switching on bilingual infants and toddlersR01HD095912 · NICHD · PRINCETON UNIVERSITY · PI BYERS-HEINLEIN, KRISTA, LEW-WILLIAMS, CASEY · 2019 to 2023
$1.9M
Bilingual Infants' and Toddlers' Processing of Mixed LanguageR03HD079779 · NICHD · PRINCETON UNIVERSITY · PI LEW-WILLIAMS, CASEY · 2015 to 2016
$147k
NICHD NIH HHS R01 HD095912NICHD NIH HHS R03 HD079779
6 · The paper itself

Abstract

Vocabulary size is a crucial early indicator of language development, for both monolingual and bilingual children. Assessing vocabulary in bilingual children is complex because they learn words in two languages, and there remains significant controversy about how to best measure their vocabulary size, especially in relation to monolinguals. This study compared monolingual vocabulary with different metrics of bilingual vocabulary, including combining vocabulary across languages to count either the number of words or the number of concepts lexicalized and assessing vocabulary in a single language. Data were collected from parents of 743 infants and toddlers aged 8-33 months learning French and/or English, using the MacArthur-Bates Communicative Development Inventories. The results showed that the nature and magnitude of monolingual-bilingual differences depended on how bilinguals' vocabulary was measured. Compared with monolinguals, bilinguals had larger expressive and receptive word vocabularies, similarly sized receptive concept vocabularies and smaller expressive concept vocabularies. Bilinguals' single-language vocabularies were smaller than monolinguals' vocabularies. The study highlights the need to better understand the role of translation equivalents in bilingual vocabulary development and the potential developmental differences in receptive and expressive vocabularies.

Indexed as

Bilingualisminfantsvocabulary development

Identifiers

PMID38283538
PMCPMC10810733

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.