Freud's concept of "libido" corresponds to Dollard and Miller's concept of

Which type of brain waves dominate slow-wave sleep?

a) alpha b) delta c) omega d) beta

You are having a discussion with a friend about the differences in math achievement in children in the United States and children in Asian countries. During your discussion, your friend states, "It must be genetic

Or maybe Asian kids are just smarter than American kids". What can you tell your friend about the reasons for cultural differences in math achievement that refute his statement? What will be an ideal response?