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Related Experiment Videos

Handedness, sex and intelligence.

J Inglis, J S Lawson

    Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
    |September 1, 1984
    PubMed
    Summary

    This study found no link between handedness and intellectual abilities in adults. While sex showed a small effect on test results, handedness did not influence cognitive patterns.

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    Area of Science:

    • Cognitive Psychology
    • Neuroscience
    • Human Intelligence

    Background:

    • Previous research suggested links between handedness, sex, and intellectual abilities.
    • Earlier studies often used small sample sizes, limiting generalizability.

    Purpose of the Study:

    • To investigate the relationship between handedness, sex, and intellectual abilities.
    • To analyze cognitive patterns using the Wechsler Adult Intelligence Scale--Revised (WAIS-R).

    Main Methods:

    • Utilized data from a large, representative population sample (N = 1880).
    • Examined performance on the Wechsler Adult Intelligence Scale--Revised (WAIS-R).

    Main Results:

    • A statistically significant, though minor, effect of sex on intellectual abilities was observed.
    • No significant effect of handedness on intellectual abilities was detected.

    Conclusions:

    • Handedness does not appear to be a significant factor in the patterning of adult intellectual abilities.
    • Sex has a small, but reliable, influence on cognitive performance as measured by the WAIS-R.

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