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Peer reviewedDeutsch, Curtis K.; Joseph, Robert M. – Journal of Autism and Developmental Disorders, 2003
A study examined the frequency and cognitive correlates of enlarged head circumference in 63 children with autism (ages 4-14). Macrocephaly occurred at a significantly higher frequency. Children with discrepantly high nonverbal abilities had a mean standardized head circumference that was more than 1 standard deviation greater than the reference…
Descriptors: Autism, Cognitive Ability, Elementary Secondary Education, Intelligence Differences
Download full textMiller, Phyllis, Ed. – Mensa Research Journal, 1999
This issue of a research journal on gifted education examines a number of research projects that delve into questions of how family life affects intelligence, especially among gifted children. Specific articles include: (1) "Are We Raising Smarter Children Today?" (Wendy M. Williams), which discusses the effects of school-related factors…
Descriptors: Birth Order, Elementary Secondary Education, Environmental Influences, Family Environment
Peer reviewedSeidenberg, Michael; And Others – Journal of Consulting and Clinical Psychology, 1983
Examined the influence of intelligence level on the performance of children (N=121), aged 9-14, on the Halstead Reitan Neuropsychological Test Battery. Results indicated a significant influence of IQ on level of performance on six of 14 measures. Tests of problem-solving abilities, language skills, and auditory perceptual analysis were most…
Descriptors: Auditory Perception, Comparative Testing, Elementary Secondary Education, Intelligence Differences
Peer reviewedHall, Eleanor G. – Roeper Review, 1980
Findings showed an almost even percentage of boys and girls, that more girls had fathers with doctorate degrees, that girls' arithmetic and spatial abilities were not significantly different from boys', that girls increased or decreased in IQ more than boys in high school, and that boys' IQs and grade point averages were significantly correlated…
Descriptors: Achievement, Elementary Secondary Education, Exceptional Child Research, Females
Peer reviewedCohen, Ronald L.; Nealson, Judi – Intelligence, 1979
Retarded subjects were compared with mental- and chronological-age matched controls on serial short-term memory (STM) tasks. Retarded subjects were inferior to the control groups on both primacy and recency items, under two recall conditions. These data are discussed in relation to possible mechanisms underlying IQ-related individual differences…
Descriptors: Age Differences, Cognitive Processes, Elementary Secondary Education, Individual Differences
