The Development of Morphosyntax in Fragile X Syndrome
Issue Date
2009-04-29Author
Sterling, Audra
Publisher
University of Kansas
Format
83 pages
Type
Dissertation
Degree Level
Ph.D.
Discipline
Psychology
Rights
This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.
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Show full item recordAbstract
An objective of research in developmental disabilities is the comparison of language phenotypes. Disorders with similar symptomology, such as autism and fragile X syndrome (FXS) are of particular interest. One area of inquiry within language development is morphosyntax (the interplay between grammatical morphology and syntactic structure). The purpose of this study was to examine morphosyntax in a group of children with FXS, while examining the impact of autism on FXS. Differences in gender were also examined. Twenty-six boys and 7 girls between 7-16 years participated. Children completed standardized tests and a language sample. The examiner completed an autism rating scale. The data indicated that boys with FXS do have a deficit in morphosyntax, relative to language comprehension. The presence of autism had a negative impact. Some of the females in this study had low nonverbal IQ, and receptive language scores. Females had low percentage correct for irregular past tense verbs.
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