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Simonton, Dean Keith – Gifted Child Quarterly, 2020
With just one exception, all of the volumes in Terman's Genetic Studies of Genius report the results of a longitudinal study of more than a thousand intellectually gifted children. That single exception is Volume II, Cox's single-authored "The Early Mental Traits of Three Hundred Geniuses," which instead was a retrospective study of 301…
Descriptors: Gifted, Individual Characteristics, Intelligence Quotient, History
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Al-Hilawani, Yasser A. – Learning Disabilities: A Multidisciplinary Journal, 2020
Proposed guidelines have been published recently (Al-Hilawani, 2016) to help identify and determine for the first time the existence of learning disabilities among students in the Middle East Arab (M.E.A.) countries. These guidelines have been drawn from recent and up-to-date information available on learning disabilities. The purpose of this…
Descriptors: Disability Identification, Students with Disabilities, Learning Disabilities, Foreign Countries
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Swanson, H. Lee – Intelligence, 2011
This study examined whether children's growth on measures of fluid (Raven Colored Progressive Matrices) and crystallized (reading and math achievement) intelligence was attributable to domain-specific or domain-general functions of working memory (WM). A sample of 290 elementary school children was tested on measures of intelligence across three…
Descriptors: Intellectual Development, Elementary School Students, Short Term Memory, Intelligence Tests
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Sternberg, Robert J. – Gifted Child Quarterly, 2011
"Everyone else was turning the page but I had not yet finished the first item." That is how the author remembers the beginning of his interest in intelligence. For whatever reason, he decided while in elementary school that intelligence is modifiable, and every year he authored a work book with exercises children could complete to increase their…
Descriptors: Intelligence, Autobiographies, Intellectual History, Career Development
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Piirto, Jane; Fraas, John – Journal for the Education of the Gifted, 2012
Two groups of adolescents (N = 114), 61 identified-gifted adolescents (M = 22, F = 39) and 51 vocational school adolescents (M = 27, F = 26), were compared on the Overexcitability Questionnaire. Each of the five Overexcitability (OE) scores--Psychomotor, Sensual, Imaginational, Intellectual, and Emotional--was subjected to a two-way ANOVA by…
Descriptors: Gifted, Questionnaires, Effect Size, Gender Differences
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Blaga, Otilia M.; Shaddy, D. Jill; Anderson, Christa J.; Kannass, Kathleen N.; Little, Todd D.; Colombo, John – Intelligence, 2009
We evaluated over 200 participants semiannually from 12 to 48 months of age on measures of intellectual (Bayley Scales, Stanford-Binet Scale) and verbal (MacArthur-Bates Inventory, Peabody Picture Vocabulary Test) status. Structural equation modeling and hierarchical linear (growth curve) analyses were applied to address the nature of development…
Descriptors: Structural Equation Models, Preschool Children, Infants, Intellectual Development
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Hall, Scott S.; Burns, David D.; Lightbody, Amy A.; Reiss, Allan L. – Journal of Abnormal Child Psychology, 2008
Structural equation modeling (SEM) was used to examine the development of intellectual functioning in 145 school-age pairs of siblings. Each pair included one child with Fragile X syndrome (FXS) and one unaffected sibling. All pairs of children were evaluated on the Wechsler Intelligence Scale for Children-Third Edition (WISC-III) at time 1 and 80…
Descriptors: Intellectual Development, Siblings, Structural Equation Models, Mental Retardation
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Goldschmidt, Lidush; Richardson, Gale A.; Willford, Jennifer; Day, Nancy L. – Journal of the American Academy of Child & Adolescent Psychiatry, 2008
A study was conducted on lower income population women who were moderate users of marijuana to examine the effects of prenatal marijuana exposure on children's intellectual development at the age of six. Results concluded that the Cognitive deficits noticed at the age of six were specific to verbal and quantitative reasoning and short-term memory.
Descriptors: Marijuana, Intelligence Tests, Short Term Memory, Intellectual Development
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van IJzendoorn, Marinus H.; Luijk, Maartje P. C. M.; Juffer, Femmie – Merrill-Palmer Quarterly: Journal of Developmental Psychology, 2008
In this meta-analysis of 75 studies on more than 3,888 children in 19 different countries, the intellectual development of children living in children's homes (orphanages) was compared with that of children living with their (foster) families. Children growing up in children's homes showed lower IQ's than did children growing up in a family…
Descriptors: Intelligence Quotient, Intellectual Development, Foster Care, Foreign Countries