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McQuillan, Maureen E.; Bates, John E.; Staples, Angela D.; Hoyniak, Caroline P.; Rudasill, Kathleen M.; Molfese, Victoria J. – Developmental Psychology, 2021
The present study examined individual differences in the development of sustained attention across toddlerhood, as well as how these individual differences related to the development of language and sleep. Toddlers (N = 314; 54% male) were assessed at 30, 36, and 42 months using multiple measures of attention, a standardized language assessment,…
Descriptors: Toddlers, Individual Differences, Attention Span, Age Differences
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Davison, Linnea; Warwick, Haven; Campbell, Kaitlyn; Gartstein, Maria A. – Journal of Education and e-Learning Research, 2019
An extensive literature links language problems with behavioral difficulties and academic underachievement. Although less extensive, emerging literature suggests that temperament, Positive Affectivity (PA) in particular, contributes to language development. Thus, the present study was focused on PA related temperament dimensions in infancy as…
Descriptors: Infants, Toddlers, Behavior Problems, Underachievement
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Rescorla, Leslie; Lee, Youn Mi Cathy; Oh, Kyung Ja; Kim, Young Ah – Journal of Speech, Language, and Hearing Research, 2013
Purpose: In this study, the authors aimed to compare vocabulary size, lexical composition, and late talking in large samples of Korean and U.S. children ages 18-35 months. Method: Data for 2,191 Korean children (211 children recruited "offline" through preschools, and 1,980 recruited "online" via the Internet) and 274 U.S.…
Descriptors: Foreign Countries, Korean, Vocabulary Development, Lexicology