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Direct linkJewsbury, Paul A.; Bowden, Stephen C.; Duff, Kevin – Journal of Psychoeducational Assessment, 2017
The Cattell-Horn-Carroll (CHC) model is a comprehensive model of the major dimensions of individual differences that underlie performance on cognitive tests. Studies evaluating the generality of the CHC model across test batteries, age, gender, and culture were reviewed and found to be overwhelmingly supportive. However, less research is available…
Descriptors: Intelligence Tests, Individual Differences, Executive Function, Neuropsychology
Farmer, Cristan; Butter, Eric; Mazurek, Micah O.; Cowan, Charles; Lainhart, Janet; Cook, Edwin H.; DeWitt, Mary Beth; Aman, Michael – Autism: The International Journal of Research and Practice, 2015
A gap exists in the literature regarding aggression in autism spectrum disorders and how this behavior compares to other groups. In this multisite study, the "Children's Scale for Hostility and Aggression: Reactive/Proactive" and the Aggression subscale of the "Child Behavior Checklist" were rated for 414 children with autism…
Descriptors: Aggression, Autism, Pervasive Developmental Disorders, Comparative Analysis
Jones, Kyle B.; Cottle, Kristina; Bakian, Amanda; Farley, Megan; Bilder, Deborah; Coon, Hilary; McMahon, William M. – Autism: The International Journal of Research and Practice, 2016
This study describes medical conditions experienced by a population-based cohort of adults with autism spectrum disorder whose significant developmental concerns were apparent during childhood. As part of a 25-year outcome study of autism spectrum disorder in adulthood, medical histories were collected on 92 participants (N = 69 males) who were…
Descriptors: Adults, Autism, Pervasive Developmental Disorders, Developmental Disabilities
Kotsopoulos, Donna; Zambrzycka, Joanna; Makosz, Samantha – Mathematical Thinking and Learning: An International Journal, 2017
The purpose of the present study was to determine whether there are visual-spatial gender differences in two-year-olds, to investigate the environmental and cognitive factors that contribute to two-year-olds' visual-spatial skills, and to explore whether these factors differ for boys and girls. Children (N = 63; M[subscript age] = 28.17 months)…
Descriptors: Gender Differences, Toddlers, Spatial Ability, Visual Acuity
Download full textKotsopoulos, Donna; Makosz, Samantha; Zambrzycka, Joanna – North American Chapter of the International Group for the Psychology of Mathematics Education, 2016
In this research we explored the relationship between spatial activities in the home and spatial ability at the start of formal schooling at age four. In total, 30 children participated in this research. Data sources included a demographic questionnaire, a survey of at home spatial activities, and standardized testing in verbal and non-verbal…
Descriptors: Spatial Ability, Correlation, Activities, School Readiness
Etmanskie, Jill M.; Partanen, Marita; Siegel, Linda S. – Journal of Learning Disabilities, 2016
There are some children who encounter unexpected reading difficulties in the fourth grade. This phenomenon has been described as late emerging reading disabilities (LERD). Using Grade 4 as a starting point, this study examined the reading development of 964 children between kindergarten and Grade 7. The results showed that 72.0% of children had…
Descriptors: Learning Disabilities, Reading Difficulties, Elementary School Students, Reading Comprehension
Carlson, Abby G.; Rowe, Ellen; Curby, Timothy W. – Journal of Genetic Psychology, 2013
Recent research has established a connection between children's fine motor skills and their academic performance. Previous research has focused on fine motor skills measured prior to elementary school, while the present sample included children ages 5-18 years old, making it possible to examine whether this link remains relevant throughout…
Descriptors: Psychomotor Skills, Academic Achievement, Visual Perception, Perceptual Motor Coordination
Peer reviewedFlynn, James R. – Journal of Educational Measurement, 1984
Thorndike's Stanford-Binet data suggest that from 1932 to 1971-72 preschool children enjoyed greater IQ gains than older children, possibly due to the rise of television. Additional analysis indicated that gains were either due to sampling error or totally antedated 1947. Gains of 12 IQ points were found for Americans. (Author/EGS)
Descriptors: Achievement Gains, Age Differences, Intelligence Differences, Intelligence Quotient
DUNN, JAMES A.; SAFFORD, PHILIP L. – 1967
AGE, SEX, AND IQ DIFFERENCES IN THE CHARACTERISTICS OF THE CONCEPTUAL PERFORMANCE OF ELEMENTARY SCHOOL CHILDREN WERE STUDIED. PERFORMANCE MEASURES WERE OBTAINED THROUGH THE USE OF DUNN'S OBJECT SORTING TASK (OST) WHICH PROVIDED SUCH INDICATORS AS SIZE OF THE COGNITIVE MATRIX, ACCESSIBILITY OF THE CONCEPTS IN THE MATRIX, AND DEGREE OF PRECISION IN…
Descriptors: Age Differences, Analysis of Variance, Childhood Attitudes, Cognitive Tests
Jensen, Arthur R. – 1975
The several statistical methods described for detecting test bias in terms of various internal features of a person's test performances and the test's construct validity can be applied to any groups in the population. But the evidence regarding groups other than U.S. blacks and whites is either lacking or is still too sketchy to permit any strong…
Descriptors: Blacks, Comparative Analysis, Culture Fair Tests, Elementary School Students
Peer reviewedSheverbush, Robert L. – Gifted Child Quarterly, 1974
Descriptors: Elementary Education, Exceptional Child Research, Gifted, Intelligence Tests
System Development Corp., Santa Monica, CA. – 1972
The second of two reports on a national evaluation of the immediate effects of Project Head Start describes the characteristics of children, families and programs in samples of full-year classes operating in 1966-67 and 1967-68. No control groups were used; comparisons were made within the Head Start sample to see what kinds of classroom…
Descriptors: Achievement Gains, Affective Measures, Age Differences, Classroom Observation Techniques
System Development Corp., Santa Monica, CA. – 1972
The first of two reports of a national evaluation of the immediate effects of Project Head Start describes the characteristics of children, families and programs in samples of full-year classes operating in 1968-69. The study identifies changes associated with Head Start participation and the conditions under which these changes were greatest. No…
Descriptors: Achievement Gains, Affective Measures, Age Differences, Classroom Observation Techniques
