Phonological development in toddlers with Down syndrome and mixed-etiology developmental delays
Issue Date
2008-01-01Author
Sokol, Shari Baron
Publisher
University of Kansas
Format
125 pages
Type
Dissertation
Degree Level
Ph.D.
Discipline
Speech-Language-Hearing: Science Disorders
Rights
This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.
Metadata
Show full item recordAbstract
Consonant inventory and syllable complexity measures were taken at two points from 50 children with developmental delays. Twenty-six children had Down syndrome (DS). Canonical and noncanonical words and utterances, and the initial- and final-consonant inventory were coded during two 15-minute videotaped conversational samples with a parent at two points in time, 18 months apart. For all measures at Time 1 (age ~25 months), the children with DS performed equally well or better than their peers without DS. The reverse was true for all measures at Time 2 (~ 43 months). Phonological skills in young children with DS are delayed beyond the level predictable by mental age during early lexical development. A clear relationship between slow phonological growth and slow lexical growth at the period of "first word" acquisition was established for children with DS.
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