On the basis of twin studies and other kinship evidence, researchers estimate that ________ of the differences in IQ among children can be traced to their genetic makeup.
A. none
B. about one quarter
C. about one half
D. almost all
Answer: C
You might also like to view...
A basic assumption of Maslow’s hierarchy of needs is that ____
a. ?most people are not capable of attaining their highest need b. ?psychological needs are less important than physiological needs c. ?one cannot satisfy self-esteem needs unless social needs are satisfied d. ?social factors outside of our control are the primary influence on our personalities
Henry believes that because he and his wife are quite intelligent that their offspring will also be intelligent
Rather than starting to save for his future child's education immediately, he believes that enriched educational experiences do not matter and that his child will not need extensive education in order to develop high levels of intelligence. What cause of intelligence does Henry seem to endorse? a. Intelligence is provided entirely by genetic factors. b. Intelligence is the result of both nature and nurture in equal parts. c. Intelligence has no genetic basis. d. Intelligence is entirely a matter of nurture.
What percentage of people past age 85 are afflicted with losses in cognitive functioning severe enough to interfere with daily life?
a. 30% b. 40% c. 50% d. 60%
________ represents variation in the DV due to the IV, whereas ________ is due to factors such as
individual differences, measurement errors, and extraneous variation. A) Within-groups variability; between-groups variability B) Cause; effect C) Error variability; between-groups variability D) Between-groups variability; within-groups variability