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Direct linkByrne, Brian; Wadsworth, Sally; Corley, Robin; Samuelsson, Stefan; Quain, Peter; DeFries, John C.; Willcutt, Erik; Olson, Richard K. – Scientific Studies of Reading, 2005
We conducted behavior?genetic analyses of kindergarten reading, spelling, phonological awareness, rapid naming, and spoken sentence processing in 172 pairs of monozygotic and 153 pairs of same-sex dizygotic twin kindergarten children sampled in the United States and Australia. We also modeled progress from preschool to kindergarten in…
Descriptors: Foreign Countries, Phonology, Kindergarten, Spelling
Samuelsson, Stefan; Byrne, Brian; Quain, Peter; Wadsworth, Sally; Corley, Robin; DeFries, John C.; Willcutt, Eric; Olson, Richard – Journal of Educational Psychology, 2005
Individual differences in measures of prereading skills and in questionnaire measures of 4-5-year-old twins' print environments in Australia, Scandinavia, and the United States were explored with a behavioral-genetic design. Modest phenotypic correlations were found between environmental measures and the twins' print knowledge, general verbal…
Descriptors: Foreign Countries, Environmental Influences, Genetics, Prereading Experience
