Tracking the Growth of Tense and Agreement in Children with Specific Language Impairment: Differences between Measures of Accuracy, Diversity, and Productivity

Autor/inn/en	Leonard, Laurence B.; Haebig, Eileen; Deevy, Patricia; Brown, Barbara
Titel	Tracking the Growth of Tense and Agreement in Children with Specific Language Impairment: Differences between Measures of Accuracy, Diversity, and Productivity
Quelle	In: Journal of Speech, Language, and Hearing Research, 60 (2017) 12, S.3590-3600 (11 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/2017_JSLHR-L-16-0427
Schlagwörter	Grammar; Morphemes; Language Impairments; Morphology (Languages); Scores; Speech Communication; Accuracy; Verbs; Preschool Children; Sample Size; Intervention; Measures (Individuals); Productivity; Language Acquisition + Suchen Sie Ihr Suchwort? Grammatik; Morphem; Speech disorder; Speech disorders; Speech disabilities; Speech disability; Speech handicap; Speech handicaps; Speech impairment; Speech impairments; Language handicaps; Sprachbehinderung; Morphology; Morphologie; Pre-school age; Preschool age; Child; Children; Pre-school education; Preschool education; Vorschulalter; Kind; Kinder; Vorschulkind; Vorschulkinder; Vorschulerziehung; Vorschule; Messdaten; Produktivität; Sprachaneignung; Spracherwerb
Abstract	Purpose: Composite measures of children's use of tense and agreement morphology differ in their emphasis on accuracy, diversity, or productivity, yet little is known about how these different measures change over time. An understanding of these differences is especially important for the study of children with specific language impairment, given these children's extraordinary difficulty with this aspect of grammar. Method: We computed 3 types of composite scores from spontaneous speech samples obtained from 17 preschoolers with specific language impairment before, during, and after their participation in a language intervention study. These measures were the Finite Verb Morphology Composite (a measure of accuracy), the Tense Marker Total (a measure of diversity), and the Productivity Score (a measure of productivity). Results: The 3 measures differed in their growth trajectories. Sample size did not alter the linear or quadratic nature of growth of any composite, although it did affect the absolute values found for the Tense Marker Total and Productivity Score. Conclusion: Even when sample size is controlled, early growth can be seen in tense and agreement accuracy with relatively limited diversity and productivity, whereas later growth in diversity and productivity can occur with very little change in accuracy. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01