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Lynn, Richard; Irwing, Paul – Intelligence, 2008
Meta-analyses are presented of sex differences in (1) the (mental) arithmetic subtest of the Wechsler intelligence tests for children and adolescents (the WISC and WPPSI tests), showing that boys obtained a mean advantage of 0.11d; (2) the (mental) arithmetic subtest of the Wechsler intelligence tests for adults (the WAIS tests) showing a mean…
Descriptors: Intelligence, Intelligence Tests, Adolescents, Mental Computation
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Jensen, Arthur R. – Intelligence, 1990
The performance on a battery of cognitive tests of an individual with extraordinary ability at mental arithmetic was studied. Implications of the rather ordinary test performance of Shakuntala Devi in contrast with her calculating speed are discussed with reference to memory and information processing. (SLD)
Descriptors: Arithmetic, Case Studies, Cognitive Ability, Cognitive Processes