Which of the following is one possible explanation for g?
a. Boys and girls develop different abilities because they have different interests.
b. Separate abilities depend on the same influences, such as health and nutrition.
c. Monozygotic twins share more of their genes than dizygotic twins do
d. Advances in technology expose children to more stimulation now than in the past.
b
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A dog that was trained to salivate at the sight of a white square also salivates somewhat at the sight of a gray square. What is the dog displaying?
a. Stimulus generalization b. Extinction c. Spontaneous recovery d. Acquisition
According to the Cystic Fibrosis Foundation,
a. cystic fibrosis is the most common fatal hereditary disease among European Americans. b. about 60,000 Americans have the disorder. c. 1 in every 11 people is carriers of this illness. d. cystic fibrosis is more common in European American individuals than any other group.
According to Freud, an unresolved conflict or emotional hang-up caused by overindulgence or by frustration is called
a. a fixation. b. an incongruence. c. androgyny. d. a cardinal trait.
Which of the following structures is found in humans, but not in other animals?
a. periaqueductal gray b. the superior colliculi c. the neodentate nucleus d. the substantia nigra