Publication Date
| In 2025 | 0 |
| Since 2024 | 0 |
| Since 2021 (last 5 years) | 1 |
| Since 2016 (last 10 years) | 6 |
| Since 2006 (last 20 years) | 17 |
Descriptor
| Twins | 19 |
| Foreign Countries | 16 |
| Genetics | 13 |
| Environmental Influences | 12 |
| Correlation | 7 |
| Kindergarten | 5 |
| Longitudinal Studies | 5 |
| Preschool Children | 5 |
| Reading Skills | 5 |
| Spelling | 5 |
| Adolescents | 3 |
| More ▼ | |
Source
Author
| Byrne, Brian | 10 |
| Samuelsson, Stefan | 9 |
| Olson, Richard K. | 8 |
| Corley, Robin | 7 |
| DeFries, John C. | 7 |
| Wadsworth, Sally | 6 |
| Hulslander, Jacqueline | 5 |
| Willcutt, Erik G. | 4 |
| Coventry, William L. | 3 |
| Boivin, Michel | 2 |
| Brendgen, Mara | 2 |
| More ▼ | |
Publication Type
| Journal Articles | 18 |
| Reports - Research | 11 |
| Reports - Evaluative | 4 |
| Reports - Descriptive | 3 |
| Books | 1 |
| Collected Works - General | 1 |
Education Level
| Early Childhood Education | 5 |
| Kindergarten | 5 |
| Grade 1 | 4 |
| Preschool Education | 4 |
| Elementary Education | 3 |
| Elementary Secondary Education | 2 |
| Grade 2 | 2 |
| Grade 3 | 2 |
| Primary Education | 2 |
| Grade 4 | 1 |
| Higher Education | 1 |
| More ▼ | |
Audience
Location
| United States | 19 |
| Australia | 11 |
| United Kingdom | 5 |
| Colorado | 4 |
| Norway | 4 |
| Sweden | 4 |
| Canada | 3 |
| Africa | 1 |
| Asia | 1 |
| Denmark | 1 |
| Indonesia | 1 |
| More ▼ | |
Laws, Policies, & Programs
Assessments and Surveys
| Eysenck Personality Inventory | 1 |
| Gates MacGinitie Reading Tests | 1 |
| National Longitudinal Study… | 1 |
| Sensation Seeking Scale | 1 |
| Wechsler Preschool and… | 1 |
| Woodcock Reading Mastery Test | 1 |
What Works Clearinghouse Rating
Peer reviewed
Direct linkVitaro, Frank; Beaver, Kevin M.; Brendgen, Mara; Dickson, Daniel J.; Dionne, Ginette; Boivin, Michel – Developmental Psychology, 2021
The goal of the present study was to replicate Burt et al. (2009) and Hou et al. (2013) findings by determining the contribution of peers' deviance to changes in participants' (monozygotic [MZ] twins') self-reported delinquency from mid- to late adolescence while controlling for possible gene-environment correlations (rGE) through the use of the…
Descriptors: Peer Influence, Twins, Delinquency, Adolescents
Tosto, Maria Grazia; Garon-Carrier, Gabrielle; Gross, Susan; Petrill, Stephen A.; Malykh, Sergey; Malki, Karim; Hart, Sara A.; Thompson, Lee; Karadaghi, Rezhaw L.; Yakovlev, Nikita; Tikhomirova, Tatiana; Opfer, John E.; Mazzocco, Michèle M. M.; Dionne, Ginette; Brendgen, Mara; Vitaro, Frank; Tremblay, Richard E.; Boivin, Michel; Kovas, Yulia – British Journal of Educational Psychology, 2019
Background: The number line task assesses the ability to estimate numerical magnitudes. People vary greatly in this ability, and this variability has been previously associated with mathematical skills. However, the sources of individual differences in number line estimation and its association with mathematics are not fully understood. Aims: This…
Descriptors: Twins, Individual Differences, Computation, Mathematics Skills
Grasby, Katrina L.; Coventry, William L.; Byrne, Brian; Olson, Richard K. – Child Development, 2019
Socioeconomic status (SES) has been found to moderate the influence of genes and the environment on cognitive ability, such that genetic influence is greater when SES is higher, and the shared environment is greater when SES is lower, but not in all Western countries. The effects of both family and school SES on the heritability of literacy and…
Descriptors: Socioeconomic Status, Literacy, Numeracy, Foreign Countries
Furnes, Bjarte; Elwér, Åsa; Samuelsson, Stefan; Olson, Richard K.; Byrne, Brian – Scientific Studies of Reading, 2019
We investigated the double-deficit hypothesis (DDH) in samples of U.S. (N = 489), Australian (N = 264), and Scandinavian (N = 293) children followed from preschool to grade 2. Children were assigned to double deficit, single deficit and no deficit subtypes in preschool, kindergarten, and grade 1 and compared on reading and spelling in grades 1 and…
Descriptors: Preschool Children, Elementary School Students, Foreign Countries, Kindergarten
Zavala, Catalina; Beam, Christopher R.; Finch, Brian K.; Gatz, Margaret; Johnson, Wendy; Kremen, William S.; Neiderhiser, Jenae M.; Pedersen, Nancy L.; Reynolds, Chandra A. – Developmental Psychology, 2018
We examined whether attained socioeconomic status (SES) moderated genetic and environmental sources of individual differences in cognitive performance using pooled data from 9 adult twin studies. Prior work concerning SES moderation of cognitive performance has focused on rearing SES. The current adult sample of 12,196 individuals (aged 27-98…
Descriptors: Socioeconomic Status, Adults, Cognitive Processes, Genetics
Peterson, Robin L.; Pennington, Bruce F.; Samuelsson, Stefan; Byrne, Brian; Olson, Richard K. – Journal of Speech, Language, and Hearing Research, 2013
Purpose: The goal of this study was to investigate the etiologic basis for the association between deficits in phonological memory (PM) and vocabulary in school-age children. Method: Children with deficits in PM or vocabulary were identified within the International Longitudinal Twin Study (ILTS; Samuelsson et al., 2005). The ILTS includes 1,045…
Descriptors: Etiology, Phonology, Short Term Memory, Vocabulary
Gillborn, David – Journal of Education Policy, 2016
Crude and dangerous ideas about the genetic heritability of intelligence, and a supposed biological basis for the Black/White achievement gap, are alive and well inside the education policy process but taking new and more subtle forms. Drawing on Critical Race Theory, the paper analyses recent hereditarian writing, in the UK and the USA, and…
Descriptors: Genetics, Intelligence, Intelligence Quotient, Racial Bias
Shane, Scott; Nicolaou, Nicos; Cherkas, Lynn; Spector, Tim D. – Journal of Applied Psychology, 2010
We applied multivariate genetics techniques to a sample of 3,412 monozygotic and dizygotic twins from the United Kingdom and 1,300 monozygotic and dizygotic twins from the United States to examine whether genetic factors account for part of the covariance between the Big Five personality characteristics and the tendency to be an entrepreneur. We…
Descriptors: Twins, Personality, Genetics, Foreign Countries
Olson, Richard K.; Keenan, Janice M.; Byrne, Brian; Samuelsson, Stefan; Coventry, William L.; Corley, Robin; Wadsworth, Sally J.; Willcutt, Erik G.; DeFries, John C.; Pennington, Bruce F.; Hulslander, Jacqueline – Scientific Studies of Reading, 2011
Genetic and environmental relations between vocabulary and reading skills were explored longitudinally from preschool through Grades 2 and 4. At preschool there were strong shared-environment and weak genetic influences on both vocabulary and print knowledge but substantial differences in their source. Separation of etiology for vocabulary and…
Descriptors: Reading Comprehension, Genetics, Word Recognition, Etiology
Byrne, Brian; Coventry, William L.; Olson, Richard K.; Hulslander, Jacqueline; Wadsworth, Sally; DeFries, John C.; Corley, Robin; Willcutt, Erik G.; Samuelsson, Stefan – Journal of Research in Reading, 2008
As part of a longitudinal twin study of literacy and language, we conducted a behaviour-genetic analysis of orthographic learning, spelling and decoding in Grade 2 children (225 identical and 214 fraternal twin pairs) in the United States and Australia. Each variable showed significant genetic and unique environment influences. Multivariate…
Descriptors: Twins, Spelling, Genetics, Foreign Countries
Samuelsson, Stefan; Byrne, Brian; Olson, Richard K.; Hulslander, Jacqueline; Wadsworth, Sally; Corley, Robin; Willcutt, Erik G.; DeFries, John C. – Learning and Individual Differences, 2008
Genetic and environmental influences on early reading and spelling at the end of kindergarten and Grade 1 were compared across three twin samples tested in the United States, Australia, and Scandinavia. Proportions of variance due to genetic influences on kindergarten reading were estimated at 0.84 in Australia, 0.68 in the U.S., and 0.33 in…
Descriptors: Twins, Spelling, Early Reading, Genetics
Leigh, Andrew; Ryan, Chris – Economics of Education Review, 2008
How much do returns to education differ across different natural experiment methods? To test this, we estimate the rate of return to schooling in Australia using two different instruments for schooling: month of birth and changes in compulsory schooling laws. With annual pre-tax income as our measure of income, we find that the naive ordinary…
Descriptors: Twins, Income, Least Squares Statistics, Foreign Countries
Caldas, Stephen J. – Applied Linguistics, 2008
In the emerging tradition of language socialization research, this study examines the changing bilingual self-perceptions of three children, identical twin girls and their older brother, from early adolescence through early adulthood. The children were reared in a predominantly French-speaking home in south Louisiana by French/English bilingual…
Descriptors: Early Adolescents, Young Adults, Adolescents, Biculturalism
McMahon, Walter, Ed. – Routledge, Taylor & Francis Group, 2011
This series addresses the relation of education to knowledge-based growth and broader measures of development beyond growth, central features of the modern world in which education has a central role. This role includes the effects of education on pure economic growth including its effects on the creation, adaptation, and dissemination of new…
Descriptors: Economic Progress, Expenditure per Student, Higher Education, Human Capital
Samuelsson, Stefan; Olson, Richard; Wadsworth, Sally; Corley, Robin; DeFries, John C.; Willcutt, Erik; Hulslander, Jacqueline; Byrne, Brian – Reading and Writing: An Interdisciplinary Journal, 2007
Genetic and environmental influences on prereading skills in preschool and on early reading and spelling development at the end of kindergarten were compared among samples of identical and fraternal twins from the U.S. (Colorado), Australia, and Scandinavia. Mean comparisons revealed significantly lower preschool print knowledge in Scandinavia,…
Descriptors: Foreign Countries, Early Reading, Reading Instruction, Kindergarten
Previous Page | Next Page »
Pages: 1 | 2
