the minnesota twins study found which surprising result
Minnesota Twin Family Study 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.[3] 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.[4][5]
Honey, I Blew Up the Kid Casting director Renee Rousselot searched over 1,000 small children for someone to portray Adam, the newest addition to the Szalinski clan. She searched for mostly three- to four-year-old boys because a younger child was thought to be problematic. She came across twins Daniel and Joshua Shalikar, from New Jersey and immediately cast them in December 1990. One twin would act in the morning, while the other was eating lunch or taking a nap. Baby consultant Elaine Hall Katz and director Randal Kleiser would plan the twins' scenes a week in advance. Tom Smith reported that, "On his own, Dan was almost too adventuresome to repeat one move, and Josh seemed very cautious. Put them together and they could do anything." However, the film did have difficulties in working with such small children, and one crew member later remarked it was "like playing hopscotch on hot coals".[1] At the time, the Shalikar twins were scheduled to appear in two more Honey films. They did appear once, but were recast in Honey, We Shrunk Ourselves.