Effects of Sampling Context on Spontaneous Expressive Language in Males with Fragile X Syndrome or Down Syndrome

Autor/inn/en	Kover, Sara T.; McDuffie, Andrea; Abbeduto, Leonard; Brown, W. Ted
Titel	Effects of Sampling Context on Spontaneous Expressive Language in Males with Fragile X Syndrome or Down Syndrome
Quelle	In: Journal of Speech, Language, and Hearing Research, 55 (2012) 4, S.1022-1038 (17 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2011/11-0075)
Schlagwörter	Expressive Language; Down Syndrome; Genetic Disorders; Mental Retardation; Congenital Impairments; Males; Children; Adolescents; Sampling; Mean Length of Utterance + Suchen Sie Ihr Suchwort? 'Downs Syndrome; Down''s Syndrome'; Down-Syndrom; Geistige Behinderung; Male; Männliches Geschlecht; Child; Kind; Kinder; Adolescent; Adolescence; Adoleszenz; Jugend; Jugendalter; Jugendlicher
Abstract	Purpose: In this study, the authors examined the impact of sampling context on multiple aspects of expressive language in male participants with fragile X syndrome in comparison to male participants with Down syndrome or typical development. Method: Participants with fragile X syndrome (n = 27), ages 10-17 years, were matched groupwise on nonverbal mental age to adolescents with Down syndrome (n = 15) and typically developing 3- to 6-year-olds (n = 15). Language sampling contexts were an interview-style conversation and narration of a wordless book, with scripted examiner behavior. Language was assessed in terms of amount of talk, mean length of communication unit (MLCU), lexical diversity, fluency, and intelligibility. Results: Participants with fragile X syndrome had lower MLCU and lexical diversity than did participants with typical development. Participants with Down syndrome produced yet lower MLCU. A differential effect of context among those with fragile X syndrome, Down syndrome, and typical development emerged for the number of attempts per minute, MLCU, and fluency. For participants with fragile X syndrome, autism symptom severity related to the number of utterances produced in conversation. Aspects of examiner behavior related to participant performance. Conclusion: Sampling context characteristics should be considered when assessing expressive language in individuals with neurodevelopmental disabilities. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10