Which of the following is a limitation of r?
a. Tends to overestimate
b. Tends to underestimate
c. Only compares to other samples
Ans: a. Tends to overestimate
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Which of the following statements is true of animals?
a) All animals are solitary and do not live in groups. b) In animal societies, there are no clear social networks and hierarchies. c) Many animals communicate with each other. d) Animals do not have the ability to invent and use tools.
Which researcher conducted the first large-scale survey of sexual practices in the United States?
a. Alfred Kinsey b. Sandra Murray c. David Buss d. Saul Kassan
Which industrialized nation is expected to show the most dramatic increase in the percent of its population over age 65?
a. United States b. Sweden c. India d. Japan
Researchers, studying the brain of individuals with autism, suggest that one area of the brain that may be involved with the disorder is the a. brain stem
b. hypothalamus. c. amygdala. d. reticular formation.