ERIC Number: EJ657407
Record Type: Journal
Publication Date: 2002
Reference Count: N/A
Longitudinal Twin Study of Early Reading Development in Three Countries: Preliminary Results.
Byrne, Brian; Delaland, Cara; Fielding-Barnsley, Ruth; Quain, Peter; Samuelsson, Stefan; Hoien, Torleiv; Corley, Robin; DeFries, John C.; Wadsworth, Sally; Willcutt, Erik; Olson, Richard K.
Annals of Dyslexia, v52 p49-73 2002
Preliminary results from data on 146 Australian, 284 American, and 70 Norwegian preschool twins indicate reliable genetic influences on phonological awareness and memory and learning. Vocabulary, grammar, and morphology showed significant shared environment and negligible genetic effects. A print knowledge composite showed genetic and shared environment influences. (Contains references.) (Author/CR)
Descriptors: Beginning Reading, Biological Influences, Cognitive Processes, Dyslexia, Emergent Literacy, Environmental Influences, Etiology, Foreign Countries, Genetics, Longitudinal Studies, Memory, Nature Nurture Controversy, Phoneme Grapheme Correspondence, Preschool Children, Twins, Vocabulary Development
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers - Location: Australia; Norway