Sex Linkage of Intelligence: The X-Factor

(Hardback)

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Why are boys more likely to have intellectual deficits such as mental subnormality, learning disorders and behaviour problems Conversely, why are men more likely than women to have exceptional cognitive ability In this text, the author theorizes that the gene controlling the growth of human intelligence is linked to the X chromosome. Intelligence therefore, is passed on from mother to son and not from father to son. This theory has implications for how we look at the past, such as the evolution of Homo Sapiens, and how we look at the future, such as male readiness for education.

Author Bio

ROBERT LEHRKE, now retired, worked as a clinical psychologist in Minnesota state institutions and in private practice and has taught at several colleges and universities, including William and Mary. Dr. Lehrke has published extensively in the area of sex-linked intelligence.