An Adoption Twin Study Is Conducted to Examine the Role

Multiple Choice

An adoption twin study is conducted to examine the role of genetics and environment on sociability. Which of the following results would lead to a conclusion that environmental factors are important in the development of this trait?

A) Identical twins reared together are more similar on the trait than identical twins reared apart.
B) Identical twins reared together are no more similar
C) on the trait than identical twins reared apart.
D) Identical twins reared together are less similar on the trait than identical twins reared apart.
E) Identical twins reared apart are more similar on the trait than fraternal twins reared apart.