Sources of human psychological differences: the Minnesota Study of Twins Reared Apart.
@article{Bouchard1990SourcesOH, title={Sources of human psychological differences: the Minnesota Study of Twins Reared Apart.}, author={T. Bouchard and D. Lykken and M. McGue and N. Segal and A. Tellegen}, journal={Science}, year={1990}, volume={250 4978}, pages={ 223-8 } }
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 personality and temperament, occupational and leisure-time interests, and social… Expand
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