Question

Question
Why do psychologists perform twin studies in order to determine the influence of genetics on intelligence?
(1 point)
Responses

Because twins tend to have more environmental commonalities
Because twins tend to have more environmental commonalities

Because twins tend to be more open to strangers, such as researchers
Because twins tend to be more open to strangers, such as researchers

Because twins share the same genetic makeup
Because twins share the same genetic makeup

Because twins have the same IQ

Answer 1

Psychologists perform twin studies to determine the influence of genetics on intelligence primarily **because twins tend to have more environmental commonalities**. This allows researchers to control for environmental factors when assessing the relative contributions of genetics and environment to intelligence. Therefore, the correct response is:

**Because twins tend to have more environmental commonalities.**