Intervention for children with severe speech disorder: A comparison of two approaches

Crosbie, Sharon, Holm, Alison and Dodd, Barbara (2005) Intervention for children with severe speech disorder: A comparison of two approaches. International Journal of Language & Communication Disorders, 40 4: 467-491. doi:10.1080/13682820500126049

Author Crosbie, Sharon
Holm, Alison
Dodd, Barbara
Title Intervention for children with severe speech disorder: A comparison of two approaches
Journal name International Journal of Language & Communication Disorders   Check publisher's open access policy
ISSN 1368-2822
Publication date 2005-10-01
Sub-type Article (original research)
DOI 10.1080/13682820500126049
Open Access Status Not yet assessed
Volume 40
Issue 4
Start page 467
End page 491
Total pages 25
Place of publication Abingdon
Publisher Taylor & Francis
Language eng
Subject 321025 Rehabilitation and Therapy - Hearing and Speech
1103 Clinical Sciences
Formatted abstract
Children with speech disorder are a heterogeneous group (e.g. in terms of severity, types of errors and underlying causal factors). Much research has ignored this heterogeneity, giving rise to contradictory intervention study findings. This situation provides clinical motivation to identify the deficits in the speech‐processing chain that underlie different subgroups of developmental speech disorder. Intervention targeting different deficits should result in a differential response to intervention across these subgroups.

To evaluate the effect of two different types of therapy on speech accuracy and consistency of word production of children with consistent and inconsistent speech disorder.

Methods & Procedures:
Eighteen children (aged 4;08–6;05 years) with severe speech disorder participated in an intervention study comparing phonological contrast and core vocabulary therapy. All children received two 8‐week blocks of each intervention. Changes in consistency of production and accuracy (per cent consonants correct) were used to measure the effect of each intervention.

Outcomes & Results:

All of the children increased their consonant accuracy during intervention. Core vocabulary therapy resulted in greater change in children with inconsistent speech disorder and phonological contrast therapy resulted in greater change in children with consistent speech disorder.

The results provide evidence that treatment targeting the speech‐processing deficit underlying a child's speech disorder will result in efficient system‐wide change. Differential response to intervention across subgroups provides evidence supporting theoretical perspectives regarding the nature of speech disorders: it reinforces the concept of different underlying deficits resulting in different types of speech disorder.
Keyword Communication
Phonological Disorder
Phonological Contrast
Core Vocabulary
Phonological Awareness Therapy
Substitution Patterns
Treatment Efficacy
Speaking Children
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Medicine Publications
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Citation counts: TR Web of Science Citation Count  Cited 51 times in Thomson Reuters Web of Science Article | Citations
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Created: Tue, 14 Aug 2007, 01:28:39 EST