Abstract
THE data of Levy1 have been quoted2,3 as evidence that people with left handed preferences have significantly lower visuospatial IQ than right handed people, although the verbal IQ's of the two groups does not differ. I have analysed data4 previously obtained and classified for other purposes, to see if they support Levy's conclusions (Table 1).
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References
Levy, J., Nature, 224, 614 (1969).
Levy, J., and Nagylaki, T., Genetics, 72, 117 (1972).
Miller, E., Brit. J. Psychol., 62, 111 (1971).
Gibson, J. B., and Light, P., Nature, 213, 441 (1967).
Wechsler, D., Manual for the Wechsler Adult Intelligence Scale (The Psychological Corporation, New York, 1955).
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GIBSON, J. Intelligence and Handedness. Nature 243, 482 (1973). https://doi.org/10.1038/243482b0
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DOI: https://doi.org/10.1038/243482b0
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Intelligence and handedness
Nature (1974)
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