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Features of developmental dyspraxia in the general speech-impaired population?

Authors
  • McCabe, P
  • Rosenthal, J B
  • McLeod, S
Type
Published Article
Journal
Clinical linguistics & phonetics
Publication Date
Jan 01, 1998
Volume
12
Issue
2
Pages
105–126
Identifiers
DOI: 10.3109/02699209808985216
PMID: 21434785
Source
Medline
License
Unknown

Abstract

A typical clinical population with speech impairment was investigated to determine the extent of the presence of features of developmental dyspraxia and its interaction between the severity of impairment. Thirty diagnostic features of developmental dyspraxia were identified from the post-1981 literature and two scales of severity were devised. First the severity of these 30 features was measured (feature severity rating, FSR), and secondly severity of speech impairment was based on percentage of consonants correct (PCC). Using these features and severity ratings a retrospective file audit was conducted of 50 paediatric clients aged 2-8 years with impaired articulation or phonology. It was found that many characteristics regarded as diagnostic for developmental dyspraxia occur in the general speech-impaired population. The relationship between the variables was analysed, and support was found for the hypotheses that: (a) there is a relationship between the number of dyspraxic features expressed and the severity of impairment of speech production and (b) developmental dyspraxia is not characterized by severe impairment, but may occur in a range of severities from mild to severe.

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