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Direct linkTessa L. Johnson; Alexander P. Burgoyne; Kelly S. Mix; Christopher J. Young; Susan C. Levine – Grantee Submission, 2022
Performance on a range of spatial and mathematics tasks was measured in a sample of 1592 students in kindergarten, third grade, and sixth grade. In a previously published analysis of these data, performance was analyzed by grade only. In the present analyses, we examined whether the relations between spatial skill and mathematics skill differed…
Descriptors: Spatial Ability, Mathematics Skills, Age Differences, Socioeconomic Status
Rihtman, Tanya; Tekuzener, Esti; Parush, Shula; Tenenbaum, Alex; Bachrach, Steven J.; Ornoy, Asher – Developmental Medicine & Child Neurology, 2010
Aim: There is a lack of investigation into the functional developmental profile of children with Down syndrome. On the basis of current international health paradigms, the purpose of this study was to assess the developmental profile of these children. Method: Sixty children (33 males, 27 females) with Down syndrome (age range 6-16y; mean age 9y…
Descriptors: Intervention, Down Syndrome, Intelligence Quotient, Short Term Memory
Ross, Judith L.; Zeger, Martha P. D.; Kushner, Harvey; Zinn, Andrew R.; Roeltgen, David P. – Developmental Disabilities Research Reviews, 2009
Objective: The goal of this study was to contrast the cognitive phenotypes in boys with 47,XYY (XYY) karyotype and boys with 47,XXY karyotype [Klinefelter syndrome, (KS)], who share an extra copy of the X-Y pseudoautosomal region but differ in their dosage of strictly sex-linked genes. Methods: Neuropsychological evaluation of general cognitive…
Descriptors: Genetic Disorders, Males, Sex, Genetics
