Article
Sources of human psychological differences: the Minnesota Study of Twins Reared Apart.
Science (New York, N.Y.) - 12 Oct 1990
Bouchard T J, Lykken D T, McGue M, Segal N L, Tellegen A
Abstract excerpt
Since 1979, a continuing study of monozygotic and dizygotic twins, separated in infancy and reared apart, has subjected more than 100 sets of reared-apart twins or triplets to a week of intensive psychological and physiological assessment. Like the prior, smaller studies of monozygotic twins reared apart, about 70% of the variance in IQ was found to be associated with genetic variation. On multiple measures of...
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