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Direct linkWakeman, Holly N.; Wadsworth, Sally J.; Olson, Richard K.; DeFries, John C.; Pennington, Bruce F.; Willcutt, Erik G. – Journal of Learning Disabilities, 2023
This study investigated the relationship between mathematics difficulties and psychopathology in a large community sample (N = 881) of youth (8-18 years of age) in the United States. The primary aims of the study were to (a) test the associations between mathematics difficulties and specific components of internalizing, externalizing, attention,…
Descriptors: Children, Adolescents, Correlation, Learning Problems
Malanchini, Margherita; Wang, Zhe; Voronin, Ivan; Schenker, Victoria J.; Plomin, Robert; Petrill, Stephen A.; Kovas, Yulia – Developmental Psychology, 2017
Extant literature has established a consistent association between aspects of reading motivation, such as enjoyment and self-perceived ability, and reading achievement, in that more motivated readers are generally more skilled readers. However, the developmental etiology of this relation is yet to be investigated. The present study explores the…
Descriptors: Reading Motivation, Recreational Reading, Self Concept, Reading Skills
Tosto, Maria G.; Hayiou-Thomas, Marianna E.; Harlaar, Nicole; Prom-Wormley, Elizabeth; Dale, Philip S.; Plomin, Robert – Developmental Psychology, 2017
This study examines the genetic and environmental etiology underlying the development of oral language and reading skills, and the relationship between them, over a long period of developmental time spanning middle childhood and adolescence. It focuses particularly on the differential relationship between language and two different aspects of…
Descriptors: Twins, Genetics, Reading Fluency, Structural Equation Models
Peterson, Robin L.; Boada, Richard; McGrath, Lauren M.; Willcutt, Erik G.; Olson, Richard K.; Pennington, Bruce F. – Journal of Learning Disabilities, 2017
The current study tested a multiple-cognitive predictor model of word reading, math ability, and attention in a community-based sample of twins ages 8 to 16 years (N = 636). The objective was to identify cognitive predictors unique to each skill domain as well as cognitive predictors shared among skills that could help explain their overlap and…
Descriptors: Twins, Children, Adolescents, Predictor Variables
Hawke, Jesse L.; Olson, Richard K.; Willcut, Erik G.; Wadsworth, Sally J.; DeFries, John C. – Dyslexia, 2009
The prevalence of reading difficulties is typically higher in males than females in both referred and research-identified samples, and the ratio of males to females is greater in more affected samples. To explore possible gender differences in reading performance, we analysed data from 1133 twin pairs in which at least one member of each pair had…
Descriptors: Reading Difficulties, Twins, Females, Incidence
Lytton, Hugh; Watts, Denise – 1981
Stability of child and mother characteristics and the predictability of children's cognitive competence and affective characteristics were investigated as part of a longitudinal study. At 2 years of age, 46 sets of male twins and their parents were observed in the home and were rated for attachment, independence, compliance and conscience on the…
Descriptors: Children, Cognitive Development, Foreign Countries, Individual Characteristics
