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Sex Differences in Intelligence: A Genetics Perspective

Davide Piffer


Richard Lynn’s paper on the existence and the magnitude of sex differences in general intelligence proposes that among adults men have a higher average IQ than women and greater variability, and these contribute to the greater number of men among high achievers. The greater variability of males may be attributable to X-linked transmission of intelligence and/or to higher testosterone that could increase the expression of genes related to neurological development or cognition. Key Words: Intelligence, Sex differences, X-linked inheritance

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