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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
Smits, D. W.; Ketelaar, M.; Gorter, J. W.; van Schie, P. E.; Becher, J. G.; Lindeman, E.; Jongmans, M. J. – Journal of Intellectual Disability Research, 2011
Background: Children with cerebral palsy (CP) are at greater risk for a limited intellectual development than typically developing children. Little information is available which children with CP are most at risk. This study aimed to describe the development of non-verbal intellectual capacity of school-age children with CP and to examine the…
Descriptors: Cerebral Palsy, Nonverbal Ability, Children, Intellectual Development
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
Maehler, Claudia; Schuchardt, K. – Journal of Intellectual Disability Research, 2009
Background: Children with learning disabilities are identified by their severe learning problems and their deficient school achievement. On the other hand, children with sub-average school achievement "and" sub-average intellectual development are thought to suffer from a general intellectual delay rather than from specific learning disabilities.…
Descriptors: Control Groups, Intelligence, Learning Problems, Learning Disabilities
Gonzalez-Monge, Sibylle; Boudia, Baya; Ritz, Annie; Abbas-Chorfa, Fatima; Rabilloud, Muriel; Iwaz, Jean; Berard, Carole – Developmental Medicine & Child Neurology, 2009
Aims: Our aim was to examine intellectual development in children with congenital hemiplegia from early childhood to adolescence. Method: Full-scale IQ (FIQ), Verbal IQ (VIQ), and Performance IQ (PIQ) scores were measured in 32 participants (19 males, 13 females) with congenital hemiplegia at mean ages of 4 years 6 months (SD 7mo; 31…
Descriptors: Intervals, Epilepsy, Females, Intelligence Quotient
Titze, Karl; Koch, Sabine; Helge, Hans; Lehmkuhl, Ulrike; Rauh, Hellgard; Steinhausen, Hans-Christoph – Developmental Medicine & Child Neurology, 2008
The offspring of mothers with epilepsy are considered to be at developmental risk during pregnancy from: (1) generalized maternal seizures (hypoxia); (2) teratogenicity of antiepileptic drugs (AEDs); and (3) adverse socio-familial conditions associated with having a chronically sick mother. Sixty-seven children of mothers with epilepsy and 49…
Descriptors: Mothers, Epilepsy, Seizures, Pregnancy

Oates, Kim; Peacock, Anthony – Australia and New Zealand Journal of Developmental Disabilities, 1984
Thirty-eight children hospitalized because of physical abuse were compared with a control group. Abuse Ss had significantly lower mean scores than the comparison children on the verbal, performance and full scale scores of the Wechsler Intelligence Scale for Children Revised and the Wechsler Preschool and Primary Scale of Intelligence. (Author/CL)
Descriptors: Child Abuse, Cognitive Development, Intellectual Development, Intelligence Quotient
Roth, Henry; Nicholson, Charles L. – Diagnostique, 1984
Scores of 20 court-identified and 20 school-identified violent and assaultive youth were compared on the Revised Wechsler Intelligence Scale for Children and the Peabody Individual Achievement Test. The possibility that court-identified violent and assaultive youth have more severe cognitive deficits that contribute to their excessively aggressive…
Descriptors: Aggression, Behavior Disorders, Intellectual Development, Intelligence Quotient

Koff, Elissa; And Others – Journal of Pediatrics, 1979
Trends in intellectual functioning before and after diet termination were examined in 30 children (5-11 years old) with PKU (Phenylketonuria, a metabolic disorder) treated before 6 weeks of age and on a liberal diet for a mean of 3 years since the mean age of 59 months. Journal availability: C.V. Mosby Company, 11830 Westline Industrial Drive, St.…
Descriptors: Children, Dietetics, Exceptional Child Research, Intellectual Development
Comparability of the WAIS and the WAIS-R: A Consideration of Level of Neuropsychological Impairment.

Zarantonello, Matthew M. – Journal of Consulting and Clinical Psychology, 1988
Found subjects of varying levels of neuropsychological impairment, administered revised Wechsler Adult Intelligence Scale (WAIS-R), obtained significantly lower Full Scale, Verbal, and Performance Intelligence Quotients (IQs) than did subjects administered original, full version WAIS. Indicated significant main effects for level of impairment for…
Descriptors: Comparative Testing, Intellectual Development, Intelligence Quotient, Intelligence Tests

Alarcon, Maricela; Knopik, Valerie S.; DeFries, John C. – Journal of School Psychology, 2000
Assesses the etiology of the covariation between mathematics performance and general cognitive ability in data from a sample of 555 twins selected for learning deficits and from a sample of 570 control twins pairs. Results show that the phenotypic relationship between mathematics and general cognitive ability is due primarily to genetic…
Descriptors: Analysis of Covariance, Genetics, Intellectual Development, Intelligence Quotient
Levine, Susan C.; Kraus, Ruth; Alexander, Erin; Suriyakham, Linda Whealton; Huttenlocher, Peter R. – Brain and Cognition, 2005
We examine whether children with early unilateral brain injury show an IQ decline over the course of development. Fifteen brain injured children were administered an IQ test once before age 7 and again several years later. Post-7 IQ scores were significantly lower than pre-7 IQ scores. In addition, pre-7 IQ scores were lower for children with…
Descriptors: Intelligence Quotient, Brain, Intelligence Tests, Head Injuries
Horn, John L. – 1979
A brief discussion of theories of general intelligence precedes a report of relevant empirical data. Results from the factor analysis of more than 20 sets of Wechsler Adult Intelligence Scale (WAIS) data indicate that the WAIS clearly is not a one-factor scale. It does not measure a single, general intelligence. Roughly 17 percent of the reliable…
Descriptors: Factor Analysis, Intellectual Development, Intelligence, Intelligence Quotient

Beckwith, Leila; Parmelee, Arthur H. Jr. – Child Development, 1986
Studied the sleep state organization and EEG patterns at term date in 53 preterm infants as an index of the maturity and integrity of neurophysiological organization that may have implications for their later development. (HOD)
Descriptors: Electroencephalography, Family Environment, Infant Behavior, Intellectual Development

Benson, Janette B.; And Others – Developmental Psychology, 1993
Examined 114 pairs of same-sex infant twins and their parents to investigate infant predictors of adult IQ. Found that some measures of infants' information processing, language ability, and temperament predicted the average IQ of infants' parents. Results support the view that some stability in certain types of intellectual functioning from…
Descriptors: Adults, Cognitive Processes, Infants, Intellectual Development