Evidence map›Paper›PMID 34491793›Full record

ArticleJournal of speech, language, and hearing research : JSLHR2021

Speech Development Between 30 and 119 Months in Typical Children I: Intelligibility Growth Curves for Single-Word and Multiword Productions.

Katherine C Hustad, Tristan J Mahr, Phoebe Natzke, Paul J Rathouz

Open access · hybridAbstract read
In one paragraph

Article in Journal of speech, language, and hearing research : JSLHR, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
8.7field-weighted citation impact, top 2% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Examining Percent Consonants Correct Produced by Preschool Children With and Without Cleft Palate Using the American English Phrase Sample.The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association · 2026
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  6. Perceptual Learning and Predictability of Children's Speech.Journal of speech, language, and hearing research : JSLHR · 2026
    Article
  7. Article
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  11. Article
  12. Article
  13. Vocal Characteristics of Children With Cerebral Palsy and Anarthria.Journal of speech, language, and hearing research : JSLHR · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Lexical Predictors of Intelligibility in Young Children's Speech.Journal of speech, language, and hearing research : JSLHR · 2023
    Article
  19. Developmental Cut-Points for Atypical Speech Intelligibility in Children With Cerebral Palsy.Journal of speech, language, and hearing research : JSLHR · 2023
    Article
  20. Tongue Shape Complexity in Children With and Without Speech Sound Disorders.Journal of speech, language, and hearing research : JSLHR · 2023
    Article
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 at 2 institutions in 1 country.

Katherine C HustadDepartment of Communication Sciences and Disorders, University of Wisconsin-Madison.ORCID 0000-0002-8544-7754
Tristan J MahrWaisman Center, University of Wisconsin-Madison.ORCID 0000-0002-8890-5116
Phoebe NatzkeWaisman Center, University of Wisconsin-Madison.ORCID 0000-0002-3397-0455
Paul J RathouzDepartment of Population Health, Dell Medical School, The University of Texas at Austin.ORCID 0000-0001-8380-4300
University of Wisconsin–Madison · USThe University of Texas at Austin · US

Funding

Waisman Intellectual and Developmental Disabilities Research Center Down Syndrome RegistryU54HD090256 · NICHD · UNIVERSITY OF WISCONSIN-MADISON · PI POLLAK, SETH D · 2016 to 2020
$6.0M
Differential Diagnosis of Functional Speech Deficits in Children with Cerebral PalsyR01DC015653 · NIDCD · UNIVERSITY OF WISCONSIN-MADISON · PI Katherine C Hustad · 2016 to 2026
$4.8M
NICHD NIH HHS U54 HD090256NIDCD NIH HHS R01 DC015653
6 · The paper itself

Abstract

Purpose We extended our earlier study on normative growth curves for intelligibility development in typical children from 30 to 119 months of age. We also determined quantile-specific age of steepest growth and growth rates. A key goal was to establish age-specific benchmarks for single-word and multiword intelligibility. Method This cross-sectional study involved collection of in-person speech samples from 538 typically developing children (282 girls and 256 boys) who passed speech, language, and hearing screening measures. One thousand seventy-six normal-hearing naïve adult listeners (280 men and 796 women) orthographically transcribed children's speech. Speech intelligibility was measured as the percentage of words transcribed correctly by naive adults, with single-word and multiword intelligibility outcomes modeled separately. Results The age range for 50% single-word intelligibility was 31-47 months (50th-5th percentiles), the age range for 75% single-word intelligibility was 49-87 months, and the age range for 90% intelligibility for single words was 83-120+ months. The same milestones were attained for multiword intelligibility at 34-46, 46-61, and 62-87 months, respectively. The age of steepest growth for the 50th percentile was 30-31 months for both single-word and multiword intelligibility and was later for children in lower percentiles. The maximum growth rate was 1.7 intelligibility percentage points per month for single words and 2.5 intelligibility percentage points per month for multiword intelligibility. Conclusions There was considerable variability in intelligibility development among typical children. For children in median and lower percentiles, intelligibility growth continues through 9 years. Children should be at least 50% intelligible by 48 months. Supplemental Material https://doi.org/10.23641/asha.16583426.

Indexed as

Speech DisordersSpeech IntelligibilityAdultChildChild, PreschoolCross-Sectional StudiesFemaleHumansLanguageMaleSpeech Production Measurement

Identifiers

PMID34491793
PMCPMC9132140
OpenAlexW3196432075

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.