Longitudinal Study of Expressive Language and Speech of Twins at 3 and 5 Years: Outgrowing a Twinning Effect

Autor/inn/en	Culloty, Amy M.; O'Toole, Ciara; Gibbon, Fiona E.
Titel	Longitudinal Study of Expressive Language and Speech of Twins at 3 and 5 Years: Outgrowing a Twinning Effect
Quelle	In: Journal of Speech, Language, and Hearing Research, 62 (2019) 7, S. 2425-2437 PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Forschungsbericht; Longitudinal Studies; Expressive Language; Child Language; Twins; Preschool Children; Correlation; Foreign Countries; Speech Skills; Vocabulary; Vocabulary Development; Pregnancy; Body Weight; Ireland + Suchen Sie Ihr Suchwort? Longitudinal study; Longitudinal method; Longitudinal methods; Längsschnittuntersuchung; 'Children''s language'; Kindersprache; Twin; Zwilling; Pre-school age; Preschool age; Child; Children; Pre-school education; Preschool education; Vorschulalter; Kind; Kinder; Vorschulkind; Vorschulkinder; Vorschulerziehung; Vorschule; Korrelation; Ausland; Mündliche Leistung; Sprachfertigkeit; Wortschatz; Wortschatzarbeit; Schwangerschaft; Körpergewicht; Irland
Abstract	Purpose: This study examines the expressive language and speech of twins, relative to singletons, at 3 and 5 years, with the aim of determining if a twinning effect occurs during this developmental period. The possibility of twins outgrowing a twinning effect was investigated. Method: A weighted population-based sample of 185 twins and 1,309 closely spaced singletons who participated in the Growing Up in Ireland study was analyzed. Their development was compared using a standardized expressive vocabulary assessment and parent interview at 3 and 5 years as well as teacher reports at 5 years. Causal steps mediation analyses were subsequently conducted to determine if gestation and birth weight mediated twin-singleton differences in expressive vocabulary development. Results: Twins' expressive vocabulary scores were slightly lower than those of singletons at 3 years, but there was no significant difference at 5 years. More parents of twins reported "a little" concern about their child's expressive language and speech skills at 3 years, although there was no significant twin--singleton difference 2 years later. Teachers' ratings of twins' and singletons' expressive language and speech skills at 5 years were comparable. Shorter gestations and lower birth weights mediated twins' lower expressive vocabulary scores at 3 years. Conclusions: A very small twinning effect on expressive vocabulary development exists at 3 years and is outgrown by 5 years. Twins born after shorter gestations or at a lower birth weight are at an increased risk of having less developed expressive vocabulary skills at 3 years. (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
Begutachtung	Peer reviewed
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01