Jasper is interested in knowing whether the environment has more of an effect on intelligence or biology. Which of the following research designs would help Jasper answer this question?

Question

Accepted Answer

Comparing the similarity in intelligence between a child and their adoptive parent, and the child and their biological parent

Answer

Comparing the similarity in intelligence between identical and same-sex fraternal twins

Answer

Comparing the similarity in intelligence between any 2 siblings

Crowdly

Jasper is interested in knowing whether the environment has more of an effect on...

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