A longitudinal case study of the effects of an integrated phonological awareness program for identical twin boys with childhood apraxia of speech (CAS)

McNeill, Brigid C., Gillon, Gail T. and Dodd, Barbara (2009) A longitudinal case study of the effects of an integrated phonological awareness program for identical twin boys with childhood apraxia of speech (CAS). International Journal of Speech-Language Pathology, 11 6: 482-495. doi:10.3109/17549500902842583


Author McNeill, Brigid C.
Gillon, Gail T.
Dodd, Barbara
Title A longitudinal case study of the effects of an integrated phonological awareness program for identical twin boys with childhood apraxia of speech (CAS)
Journal name International Journal of Speech-Language Pathology   Check publisher's open access policy
ISSN 1754-9515
1754-9507
Publication date 2009-12
Sub-type Article (original research)
DOI 10.3109/17549500902842583
Volume 11
Issue 6
Start page 482
End page 495
Total pages 14
Place of publication London, United Kingdom
Publisher Informa Healthcare
Language eng
Subject 2004 Linguistics
1701 Psychology
Abstract This study is an examination of the longitudinal effects of an integrated phonological awareness approach for identical twin boys with childhood apraxia of speech (CAS). Genetic and environmental factors in the boys' responses to the intervention were also examined. Theo and Jamie (aged 4;5) each participated in 18 hours of intervention prior to school entry and were re-assessed at age 4;9, 5;3, and 5;9 respectively. Their speech, expressive morpho-syntactic, phonological awareness, reading, and spelling development were evaluated over their first year of schooling. Theo and Jamie experienced continued growth in speech and phonological awareness skills following participation in the intervention. They exhibited age-appropriate reading and spelling development during their first year of formal literacy instruction. They had persistent deficits in expressive morpho-syntactic skills despite speech production gains over the study. The results pointed to the benefit of integrating speech and phonological awareness goals within a preventative framework to ensure successful early literacy development for children with CAS. Findings suggested that language difficulties in children with CAS should be targeted during intervention as they do not resolve as the children's speech production difficulties minimize.
Keyword Childhood Apraxia of Speech (CAS)
Phonological awareness
Twin study
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: UQ Centre for Clinical Research Publications
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Created: Tue, 21 Sep 2010, 16:32:21 EST by Laura McTaggart on behalf of Faculty Of Health Sciences