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Summary: A Second Look At Twin Studies

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Twin studies have been popular by psychologists due to both genetic and environmental factors. As noted in “A Second Look at Twin Studies” by Winerman, equal environments in the classical twin study may not exist as identical and fraternal twins may not always be treated equally and it is an assumption without proof. Though the genetic makeup of the twins may be the same, the impact on the twin from the environment such as, parents, teachers, and peers may not. Twin researchers assume twins raised in the same home are raised in uniform environments.
Take for instance two identical twins competing in sports. If one of the twins would happen to run faster or toss the ball a bit further, the coach will probably show favor toward the one who
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