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Direct linkErbeli, Florina; Hart, Sara A.; Taylor, Jeanette – Journal of Learning Disabilities, 2019
A risk to develop a learning disability has been shown to run in families. Having a positive family history of learning disability seems to account for mean differences in achievement outcomes (reading, math) in that children with a positive family history score significantly lower compared to their peers with no such family history. However, the…
Descriptors: Genetics, Environmental Influences, Academic Achievement, Outcomes of Education
Toseeb, Umar; Oginni, Olakunle Ayokunmi; Dale, Philip S. – Journal of Learning Disabilities, 2022
There is considerable variability in the extent to which young people with developmental language disorder (DLD) experience mental health difficulties. What drives these individual differences remains unclear. In the current article, data from the Twin Early Development Study were used to investigate the genetic and environmental influences on…
Descriptors: Language Impairments, Correlation, Psychopathology, Mental Health
Little, Callie W.; Hart, Sara A.; Schatschneider, Christopher; Taylor, Jeanette – Journal of Learning Disabilities, 2016
Previous literature has indicated an important association between reading comprehension and both attention-deficit/hyperactivity disorder (ADHD) and homework habits. This investigation sought to extend previous knowledge by providing information about how ADHD and homework behavior (i.e., completing homework regularly) may jointly influence…
Descriptors: Attention Deficit Hyperactivity Disorder, Homework, Reading Comprehension, Correlation
Kovas, Yulia; Haworth, Claire M. A.; Petrill, Stephen A.; Plomin, Robert – Journal of Learning Disabilities, 2007
The genetic and environmental etiologies of 3 aspects of low mathematical performance (math disability) and the full range of variability (math ability) were compared for boys and girls in a sample of 5,348 children age 10 years (members of 2,674 pairs of same-sex and opposite-sex twins) from the United Kingdom (UK). The measures, which we…
Descriptors: National Curriculum, Nature Nurture Controversy, Genetics, Etiology
Hayiou-Thomas, Marianna E.; Oliver, Bonamy; Plomin, Robert – Journal of Learning Disabilities, 2005
The present study addresses the distinction between specific (SLI) and nonspecific (NLI) language impairment at an etiological level by estimating the relative genetic and environmental contributions to language impairment in children with SLI and NLI. Drawing on a large longitudinal twin study, we tested a sample of 356 four-and-a-half-year-old…
Descriptors: Environmental Influences, Nonverbal Ability, Language Aptitude, Genetics
Peer reviewedMatheny, Adam P., Jr.; Dolan, Anne Brown – Journal of Learning Disabilities, 1974
Descriptors: Environmental Influences, Exceptional Child Research, Genetics, Learning Disabilities
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
Peer reviewedWadsworth, Sally J.; Olson, Richard K.; Pennington, Bruce F.; DeFries, John C. – Journal of Learning Disabilities, 2000
Composite reading performance data from 223 pairs of identical twins and 169 same-gender fraternal twins in which at least one member was classified with reading disability were subjected to multiple regression analysis. Results indicated that the genetic etiology of reading disability differs as a linear function of IQ. (Contains extensive…
Descriptors: Biological Influences, Children, Disability Identification, Environmental Influences
