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Direct linkByrne, Brian; Samuelsson, Stefan; Wadsworth, Sally; Hulslander, Jacqueline; Corley, Robin; DeFries, John C.; Quain, Peter; Willcutt, Erik G.; Olson, Richard K. – Reading and Writing: An Interdisciplinary Journal, 2007
Grade 1 literacy skills of twin children in Australia (New South Wales) and the United States (Colorado) were explored in a genetically sensitive design (N = 319 pairs). Analyses indicated strong genetic influence on word and nonword identification, reading comprehension, and spelling. Rapid naming showed more modest, though reliable, genetic…
Descriptors: Longitudinal Studies, Emergent Literacy, Preschool Children, Kindergarten
Peer reviewedShopen, Glenda; Shopen, Tim – Australian Journal of Early Childhood, 1995
Examines the case of two five-year-old twin boys with delayed language development, yet judged to be articulate and successful students in kindergarten. Suggests that the delay appeared because most of their interaction had been with each other. However, through their family they became acquainted with the discourse activities that are valued at…
Descriptors: Case Studies, Child Development, Delayed Speech, Family Environment
