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Kanaya, Tomoe; Ceci, Stephen J. – Journal of Psychoeducational Assessment, 2011
The Flynn effect, a secular rise in IQ seen throughout the world, was examined on the WISC-R and WISC-III subtests in a longitudinal sample of more than 2,500 school children who were tested between 1974 and 2002. Multivariate analysis of variance and multiple regression analyses revealed that all the subtests experienced significant decreases in…
Descriptors: Intelligence Tests, Intelligence Quotient, Test Norms, Change
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Eussen, Mart L. J. M.; Van Gool, Arthur R.; Verheij, Fop; De Nijs, Pieter F. A.; Verhulst, Frank C.; Greaves-Lord, Kirstin – Autism: The International Journal of Research and Practice, 2013
Limited quality of social relations, milder symptom severity and higher intelligence were shown to account for higher anxiety levels in autism spectrum disorders. The current study replicated and extended earlier findings by combining these three determinants of anxiety in autism spectrum disorders in one study. The sample consisted of 134…
Descriptors: Autism, Pervasive Developmental Disorders, Anxiety, Symptoms (Individual Disorders)
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Klein, Sheryl; Guiltner, Val; Sollereder, Patti; Cui, Ying – Physical & Occupational Therapy in Pediatrics, 2011
Occupational therapists assess fine motor, visual motor, visual perception, and visual skill development, but knowledge of the relationships between scores on sensorimotor performance measures and handwriting legibility and speed is limited. Ninety-nine students in grades three to six with learning and/or behavior problems completed the Upper-Limb…
Descriptors: Behavior Problems, Handwriting, Visual Perception, Multiple Regression Analysis