Elsevier

Brain and Cognition

Volume 38, Issue 1, October 1998, Pages 87-101
Brain and Cognition

Regular Article
Handedness and Sex Differences in Intelligence: Evidence from the Medical College Admission Test,☆☆

https://doi.org/10.1006/brcg.1998.1021Get rights and content

Abstract

Our analysis of Medical College Admission Test subtest scores by writing hand preference and sex suggests that (a) right hemispheric dominance is associated with intellectual giftedness in verbal reasoning (left-handers obtained higher scores on the verbal reasoning test and were overrepresented in the upper tail of the distribution), (b) different patterns of brain lateralization are associated with different subcomponents of cognition (right-handers scored higher, on average, on the writing test and were overrepresented in the upper tail of the distribution), and (c) men generally score higher than women on tests of scientific knowledge (the most striking differences between men and women were on the biological and physical science tests).

References (45)

  • S.D. Stellman et al.

    The epidemiology of left-handedness in a hospital population

    Annals of Epidemiology

    (1997)
  • H. Stumpf et al.

    Gender-related differences in cognitive abilities: Evidence from a medical school admission testing program

    Personality and Individual Differences

    (1994)
  • M. Batheja et al.

    Handedness in the mentally handicapped

    Developmental Medicine and Child Neurology

    (1985)
  • C.P. Benbow

    Sex differences in mathematical reasoning ability in intellectually talented preadolescents: Their nature, effects and possible causes

    Behavioral and Brain Sciences

    (1988)
  • C.P. Benbow et al.

    Psychological profiles of the mathematically talented: Some sex differences and evidence supporting their biological basis

    Ciba Foundation Symposium

    (1993)
  • D.V.M. Bishop et al.

    The measurement of hand preference: A validation study comparing three groups of right-handers

    British Journal of Psychology

    (1996)
  • B. Bridgeman et al.

    Success in college for students with discrepancies between performance on multiple-choice and essay tests

    Journal of Educational Psychology

    (1996)
  • M.B. Casey et al.

    The influence of spatial ability on gender differences in mathematics college entrance test scores

    Developmental Psychology

    (1995)
  • M.L. Collaer et al.

    Human behavioral sex differences: A role for gonadal hormones during early development?

    Psychological Bulletin

    (1995)
  • S. Coren

    The left-hander syndrome

    (1992)
  • S. Coren et al.

    Left-handedness: A marker for decreased survival fitness

    Psychological Bulletin

    (1991)
  • S. Coren et al.

    Fifty centuries of right-handedness: The historical record

    Science

    (1977)
  • Cited by (0)

    Correspondence and reprint requests should be sent to Diane F. Halpern, Department of Psychology, California State University, San Bernardino, 5500 University Parkway, San Bernardino, CA 92407–2397. E-mail:[email protected].

    ☆☆

    M. S. Gazzaniga

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