In survey studies, answers to questions regarding sex, drinking, drug use, income, and church attendance tend to be less than truthful, indicating a distinct

3-year-old Wendy is playing hide-and-seek with some older children. However, instead of running to find a hiding place away from the other children, Wendy simply covers her eyes. In this example, Wendy is demonstrating

a) intuitive thought. b) egocentric thought. c) centration. d) conservation.

The best way to study the effects of the environment on intelligence is to ______.

A. compare IQ scores of identical twins reared together B. compare IQ scores of identical twins reared apart C. correlate IQ scores of children raised in the same home with the biological parents D. correlate IQ scores of children raised in the same home with adoptive parents