<P> In 1979 , Thomas J. Bouchard began to study twins who were separated at birth and reared in different families . He found that an identical twin reared away from his or her co-twin seems to have about an equal chance of being similar to the co-twin in terms of personality , interests , and attitudes as one who has been reared with his or her co-twin . This leads to the conclusion that the similarities between twins are due to genes , not environment , since the differences between twins reared apart must be due totally to the environment . Psychologist now refer to studies such as this as an Adoption Strategy . </P>
<P> In 1979 , Thomas J. Bouchard began to study twins who were separated at birth and reared in different families . He found that an identical twin reared away from his or her co-twin seems to have about an equal chance of being similar to the co-twin in terms of personality , interests , and attitudes as one who has been reared with his or her co-twin . This leads to the conclusion that the similarities between twins are due to genes , not environment , since the differences between twins reared apart must be due totally to the environment . Psychologist now refer to studies such as this as an Adoption Strategy . </P>
the minnesota twins study found which surprising result
the minnesota twins study found which surprising result
that the similarities between twins are due to genes , not environment , since the differences between twins reared apart must be due totally to the environment
that the similarities between twins are due to genes , not environment , since the differences between twins reared apart must be due totally to the environment