Differentiating speech delay from disorder: Does it matter?

Dodd, Barbara (2011) Differentiating speech delay from disorder: Does it matter?. Topics in Language Disorders, 31 2: 96-111. doi:10.1097/TLD.0b013e318217b66a

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Author Dodd, Barbara
Title Differentiating speech delay from disorder: Does it matter?
Journal name Topics in Language Disorders   Check publisher's open access policy
ISSN 0271-8294
Publication date 2011-04
Sub-type Article (original research)
DOI 10.1097/TLD.0b013e318217b66a
Volume 31
Issue 2
Start page 96
End page 111
Total pages 16
Place of publication Philadelphia, PA, United States
Publisher Lippincott Williams & Wilkins
Collection year 2012
Language eng
Formatted abstract
Aim: The cognitive-linguistic abilities of 2 subgroups of children with speech impairment were compared to better understand underlying deficits that might influence effective intervention.
Methods: Two groups of 23 children, aged 3;3 to 5;6, performed executive function tasks assessing cognitive flexibility and nonverbal rule abstraction. Following the system of differential diagnosis of speech disorders first described by , one group was identified as having delayed speech development, as their non-age-appropriate speech error patterns were typical of younger children. The other group was diagnosed as disordered because children consistently used at least one speech error pattern atypical of any age group in an assessments' normative sample (Dodd, Zhu, Crosbie, Holm, & Ozanne, 2002).
Results and Conclusions: The disordered group performed less well than the delayed group: They had poorer cognitive flexibility and difficulty abstracting nonlinguistic rules. They made more consonant errors and different types of errors. The 2 groups did not differ on measures of language, vowel accuracy, or consistency of multiple productions of the same words. The findings suggest that different interventions, reflecting knowledge of underlying deficits, might benefit specific subgroups of children with speech impairment.
Keyword Cognitive flexibility
Error patterns
Speech delay
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: UQ Centre for Clinical Research Publications
Official 2012 Collection
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
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Created: Mon, 30 Jan 2012, 13:38:11 EST by Roheen Gill on behalf of UQ Centre for Clinical Research