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Petrill, Stephen A.; Hart, Sara A.; Harlaar, Nicole; Logan, Jessica; Justice, Laura M.; Schatschneider, Christopher; Thompson, Lee; DeThorne, Laura S.; Deater-Deckard, Kirby; Cutting, Laurie – Journal of Child Psychology and Psychiatry, 2010
Background: Studies have suggested genetic and environmental influences on overall level of early reading whereas the larger reading literature has shown environmental influences on the rate of growth of early reading skills. This study is the first to examine the genetic and environmental influences on both initial level of performance and rate…
Descriptors: Twins, Phonemes, Early Reading, Home Visits
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Petrill, Stephen, A.; Deater-Deckard, Kirby; Thompson, Lee Anne; DeThorne, Laura S.; Schatschneider, Christopher – Journal of Educational Psychology, 2006
The current study involved 281 early-school-age twin pairs (118 monozygotic, 163 same-sex dizygotic) participating in the ongoing Western Reserve Reading Project (S. A. Petrill, K. Deater-Deckard, L. A. Thompson, & C. Schatschneider, 2006). Twins were tested in their homes by separate examiners on a battery of reading-related skills including…
Descriptors: Early Reading, Environmental Influences, Twins, Reading Skills
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Speece, Deborah L.; Ritchey, Kristen D.; Cooper, David H.; Roth, Froma P.; Schatschneider, Christopher – Contemporary Educational Psychology, 2004
We examined models of individual change and correlates of change in the growth of reading skills in a sample of 40 children from kindergarten through third grade. A broad range of correlates was examined and included family literacy, oral language, emergent reading, intelligence, spelling, and demographic variables. Individual growth curve…
Descriptors: Early Reading, Reading Skills, Primary Education, Young Children