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Kotsopoulos, Donna; Makosz, Samantha; Zambrzycka, Joanna; Dickson, Brandon A. – Early Child Development and Care, 2021
An enduring challenge in visual-spatial research has been to identify the factors contributing to individual differences in ability. This research investigated the overall, verbal, and nonverbal visual-spatial ability of 61 (34 boys) three- to five-year-olds (M[subscript age] = 57.3 months; SD = 7.9) and the following factors known to be related…
Descriptors: Individual Differences, Spatial Ability, Visual Perception, Preschool Children
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Rodas, Naomi V.; Blacher, Jan; Baker, Bruce L. – Journal of Mental Health Research in Intellectual Disabilities, 2020
Introduction: We examined the development of anxiety in youth with or without intellectual disabilities (ID). We also examined the effects of child delay status, temperament, ethnicity, and negative parenting on anxiety symptom trajectory. Method: Participants were 177 families in (blinded). We employed latent growth curve modeling to examine the…
Descriptors: Predictor Variables, Anxiety, Intellectual Disability, Children
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Petrill, Stephen A.; Deater-Deckard, Kirby; Schatschneider, Christopher; Davis, Chayna – Infant and Child Development, 2007
Evidence from intervention studies, quantitative genetic and molecular genetic studies suggests that genetic, and to a lesser extent, shared environmental influences are important to the development of reading and related cognitive skills. The Northeast-Northwest Collaborative Adoption Projects (N2CAP) is a sample of 241 adoptive families,…
Descriptors: Evidence, Genetics, Parents, Family Environment