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Jones, Manon W.; Branigan, Holly P.; Parra, Mario A.; Logie, Robert H. – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2013
The ability to learn visual-phonological associations is a unique predictor of word reading, and individuals with developmental dyslexia show impaired ability in learning these associations. In this study, we compared developmentally dyslexic and nondyslexic adults on their ability to form cross-modal associations (or "bindings") based…
Descriptors: Experimental Psychology, Dyslexia, Predictor Variables, Associative Learning
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Wicherts, Jelte M.; Dolan, Conor V.; van der Maas, Han L. J. – Intelligence, 2010
On the basis of several reviews of the literature, Lynn [Lynn, R., (2006). Race differences in intelligence: An evolutionary analysis. Augusta, GA: Washington Summit Publishers.] and Lynn and Vanhanen [Lynn, R., & Vanhanen, T., (2006). IQ and global inequality. Augusta, GA: Washington Summit Publishers.] concluded that the average IQ of the…
Descriptors: International Studies, Intelligence Quotient, Foreign Countries, Psychometrics
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Roivainen, Eka – Intelligence, 2010
For this study, European WAIS III performance subtest norms were compared to the original US norms. When European WAIS III raw scores were scored using US norms, the resulting perceptual organization index (POI) means were significantly higher than the processing speed index (PSI) means. The POI/PSI difference is roughly 5-10 points for the German…
Descriptors: Intelligence Tests, Comparative Analysis, Foreign Countries, Test Norms
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Tobin, Michael; Hill, Eileen; Hill, John – British Journal of Visual Impairment, 2010
Experienced teachers have long asserted that children blind from retinoblastoma (Rb), a rare cancer of the eye, are of above average intelligence. To test this hypothesis, standardized verbal intelligence tests were administered to a sample of 85 children and adults, all diagnosed with the early infancy form of this condition. For 42 of the Rb…
Descriptors: Control Groups, Visual Impairments, Intelligence Tests, Intelligence Quotient
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Gordon, Shirley; Duff, Simon; Davidson, Terry; Whitaker, Simon – Journal of Applied Research in Intellectual Disabilities, 2010
Background: Previous research with earlier versions of the WISC and WAIS has demonstrated that when administered to people who have intellectual disabilities, the WAIS produced higher IQ scores than the WISC. The aim of this study was to examine whether these differences still exist. A comparison of the Wechsler Adult Intelligence Scale-Third…
Descriptors: Intelligence, Mental Retardation, Psychologists, Intelligence Quotient