Evidence map›Paper›PMID 36972338›Full record

ArticleJournal of speech, language, and hearing research : JSLHR2023

Learning a Sign Language Does Not Hinder Acquisition of a Spoken Language.

Elana Pontecorvo, Michael Higgins, Joshua Mora, Amy M Lieberman, Jennie Pyers, Naomi K Caselli

Open access · hybridAbstract read
In one paragraph

Article in Journal of speech, language, and hearing research : JSLHR, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
30.2field-weighted citation impact, top 1% of its field
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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Perceptions of Deaf education in the Deaf community.Journal of deaf studies and deaf education · 2026
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  19. Hearing Loss and Autism Spectrum Disorder.Journal of developmental and behavioral pediatrics : JDBP
    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

6 authors at 2 institutions in 1 country.

Elana PontecorvoBoston University, MA.ORCID 0000-0002-1340-0121
Michael HigginsBoston University, MA.
Joshua MoraBoston University, MA.
Amy M LiebermanBoston University, MA.
Jennie PyersWellesley College, MA.
Naomi K CaselliBoston University, MA.
Boston University · USGoogle (United States) · US

Funding

Development of Gaze Control for Integration of Language and Visual Information in Deaf ChildrenR01DC015272 · NIDCD · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI Amy M Lieberman · 2016 to 2026
$4.4M
Effects of input quality on ASL vocabulary acquisition in deaf childrenR01DC018279 · NIDCD · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI CASELLI, NAOMI K. · 2020 to 2024
$3.3M
American Sign Language Vocabulary AcquisitionR21DC016104 · NIDCD · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI CASELLI, NAOMI K. · 2017 to 2019
$504k
NIDCD NIH HHS R01 DC015272NIDCD NIH HHS R01 DC018279NIDCD NIH HHS R21 DC016104
6 · The paper itself

Abstract

purposeThe purpose of this study is to determine whether and how learning American Sign Language (ASL) is associated with spoken English skills in a sample of ASL-English bilingual deaf and hard of hearing (DHH) children.

methodThis cross-sectional study of vocabulary size included 56 DHH children between 8 and 60 months of age who were learning both ASL and spoken English and had hearing parents. English and ASL vocabulary were independently assessed via parent report checklists.

resultsASL vocabulary size positively correlated with spoken English vocabulary size. Spoken English vocabulary sizes in the ASL-English bilingual DHH children in the present sample were comparable to those in previous reports of monolingual DHH children who were learning only English. ASL-English bilingual DHH children had total vocabularies (combining ASL and English) that were equivalent to same-age hearing monolingual children. Children with large ASL vocabularies were more likely to have spoken English vocabularies in the average range based on norms for hearing monolingual children.

conclusionsContrary to predictions often cited in the literature, acquisition of sign language does not harm spoken vocabulary acquisition. This retrospective, correlational study cannot determine whether there is a causal relationship between sign language and spoken language vocabulary acquisition, but if a causal relationship exists, the evidence here suggests that the effect would be positive. Bilingual DHH children have age-expected vocabularies when considering the entirety of their language skills. We found no evidence to support recommendations that families with DHH children avoid learning sign language. Rather, our findings show that children with early ASL exposure can develop age-appropriate vocabulary skills in both ASL and spoken English.

Indexed as

DeafnessSign LanguageChildCross-Sectional StudiesHumansLanguageLanguage DevelopmentRetrospective StudiesVocabulary

Identifiers

PMID36972338
PMCPMC10187967
OpenAlexW4361018465

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.