Sample Length Affects the Reliability of Language Sample Measures in 3-Year-Olds: Evidence from Parent-Elicited Conversational Samples

Autor/inn/en	Guo, Ling-Yu; Eisenberg, Sarita
Titel	Sample Length Affects the Reliability of Language Sample Measures in 3-Year-Olds: Evidence from Parent-Elicited Conversational Samples
Quelle	In: Language, Speech, and Hearing Services in Schools, 46 (2015) 2, S.141-153 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0161-1461
DOI	10.1044/2015_LSHSS-14-0052
Schlagwörter	Morphemes; Interpersonal Communication; Parents; Young Children; Play; Speech Communication; Computation; Language Usage; Morphology (Languages) + Suchen Sie Ihr Suchwort? Morphem; Interpersonale Kommunikation; Eltern; Frühe Kindheit; Spiel; Sprachgebrauch; Morphology; Morphologie
Abstract	Purpose: The goal of this study was to investigate the extent to which sample length affected the reliability of total number of words (TNW), number of different words (NDW), and mean length of C-units in morphemes (MLCUm) in parent-elicited conversational samples for 3-year-olds. Method: Participants were sixty 3-year-olds. A 22-min language sample was collected from each child during free play with the parent in the laboratory. Samples of 1, 3, 7, and 10 min were extracted from the 22-min samples. TNW, NDW, and MLCUm were computed from each shorter sample and the 22-min sample. TNW and NDW were adjusted by number of minutes for comparisons. The differences and correlations between each shorter sample cut and the 22-min sample on MLCUm and adjusted TNW and NDW were computed. Results: The shorter samples and the 22-min samples significantly differed in adjusted TNW and NDW, but not in MLCUm. TNW reached an acceptable reliability level (i.e., r = 0.90) in 7-min samples. NDW and MLCUm approached the acceptable reliability level (rs = 0.88) in 7-min samples and reached it in 10-min samples. Conclusion: For conversational language samples with similar collection procedures, samples of 7 to 10 min are desirable for calculating TNW, NDW, and MLCUm in 3-year-olds. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01