Compared with the brains of people with average intelligence, the brains of highly intelligent people
a. do not show any systematic structural differences, because intelligence is determined by environmental factors, not biological factors.
b. show higher volumes of gray matter and cortical thickness in the prefrontal and temporal lobes
c. show thinner cortical layers.
d. are actually smaller in volume, making them operate more efficiently.
b
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The textbook notes that nearly two-thirds of the deaths of those under 80 in the United States reflect the top 5 causes of death. Of these deaths, about one in ______ could be prevented by changes in people’s behavior.
A. five B. four C. three D. two
When does participation in organized sports begin to decline?
a. At age 4 b. During middle childhood c. In adolescence d. It does not decline? rather, participation in organized sports increases over time
What is one limitation of the ethnographic method?
A) Investigators’ cultural values sometimes lead them to misinterpret what they see. B) It provides little information on how children and adults actually behave. C) It relies on unobtrusive techniques, such as surveillance cameras and one-way mirrors. D) It provides little information about the reasoning behind participants’ responses.
The largest number of car and work-related accidents occur at around 2 a.m
Indicate whether the statement is true or false