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Genetic and Environmental Influences on the Growth of Early Reading Skills
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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
Reducing the Incidence of Early Reading Difficulties: Professional Development for Classroom Teachers versus Direct Interventions for Children
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Scanlon, Donna M.; Gelzheiser, Lynn M.; Vellutino, Frank R.; Schatschneider, Christopher; Sweeney, Joan M. – Learning and Individual Differences, 2008
This study examined the effectiveness of two tiers of intervention for preventing early reading difficulties among kindergarten children who qualified as at risk of experiencing difficulty in the early stages of learning to read. Participating schools were randomly assigned to one of three treatment conditions: Professional Development for…
Descriptors: Reading Difficulties, Intervention, Maintenance, Early Reading
Using Response to Kindergarten and First Grade Intervention to Identify Children At-Risk for Long-Term Reading Difficulties
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Vellutino, Frank R.; Scanlon, Donna M.; Zhang, Haiyan; Schatschneider, Christopher – Reading and Writing: An Interdisciplinary Journal, 2008
Entry-level kindergartners in classrooms from five middle class school districts were given a test of letter identification and children who scored at or below the 30th percentile on the test were classified as "at risk" for early reading difficulties. Half of these children were randomly assigned to a project-based intervention condition where…
Descriptors: Reading Difficulties, Middle Class, Intervention, Early Reading
Genetic and Environmental Effects of Serial Naming and Phonological Awareness on Early Reading Outcomes
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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
Reading Skills in Early Readers: Genetic and Shared Environmental Influences
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Petrill, Stephen A.; Deater-Deckard, Kirby; Thompson, Lee Anne; DeThorne, Laura S.; Schatschneider, Christopher – Journal of Learning Disabilities, 2006
The present study combined parallel data from the Northeast-Northwest Collaborative Adoption Projects (N2CAP) and the Western Reserve Reading Project (WRRP) to examine sibling similarity and quantitative genetic model estimates for measures of reading skills in 272 school-age sibling pairs from three family types (monozygotic twins, dizygotic…
Descriptors: Environmental Influences, Cognitive Ability, Twins, Reading Skills
Measured Environmental Influences on Early Reading: Evidence From an Adoption Study
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Petrill, Stephen A.; Deater-Deckard, Kirby; Schatschneider, Christopher; Davis, Chayna – Scientific Studies of Reading, 2005
Many studies have examined the relationship between environmental processes and literacy outcomes. However, nearly all of this research has examined biologically related family members living together, thus confounding genetic and environmental influences. The purpose of this study was to address this issue using a sample of 262 adopted children…
Descriptors: Early Reading, Environmental Influences, Family Environment, Educational Attitudes
Growth in Early Reading Skills from Kindergarten to Third Grade
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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