FEATURES OF DEVELOPMENTAL DYSPRAXIA IN THE GENERAL SPEECH-IMPAIRED POPULATION

Citation
P. Mccabe et al., FEATURES OF DEVELOPMENTAL DYSPRAXIA IN THE GENERAL SPEECH-IMPAIRED POPULATION, Clinical linguistics & phonetics, 12(2), 1998, pp. 105-126
Citations number
56
Categorie Soggetti
Rehabilitation,"Language & Linguistics
ISSN journal
02699206
Volume
12
Issue
2
Year of publication
1998
Pages
105 - 126
Database
ISI
SICI code
0269-9206(1998)12:2<105:FODDIT>2.0.ZU;2-6
Abstract
A typical clinical population with speech impairment was investigated to determine the extent of the presence of features of developmental d yspraxia and its interaction between the severity of impairment. Thirt y diagnostic features of developmental dyspraxia were identified from the post-1981 literature and two scales of severity were devised. Firs t the severity of these 30 features was measured (feature severity rat ing, FSR), and secondly severity of speech impairment was based on per centage of consonants correct (PCC). Using these features and severity ratings a retrospective file audit was conducted of 50 paediatric cli ents aged 2-8 years with impaired articulation or phonology. It was fo und that many characteristics regarded as diagnostic for developmental dyspraxia occur in the general speech-impaired population. The relati onship between the variables was analysed, and support was found for t he 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 sev ere impairment, but may occur in a range of severities from mild to se vere.