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Culloty, Amy M.; O'Toole, Ciara; Gibbon, Fiona E. – Journal of Speech, Language, and Hearing Research, 2019
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…
Descriptors: Longitudinal Studies, Expressive Language, Child Language, Twins