Which of the following defines an absolute threshold?
A. an adjustment in sensory capacity after prolonged exposure to unchanging stimuli
B. the range of wavelengths that the human eye can detect
C. the smallest intensity of a stimulus that must be present for it to be detected
D. the smallest level of added stimulation required to sense that a change in stimulation has occurred
Answer: C
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Intergroup conflict between two groups of boys at summer camp was most effectively reduced by
a. intense athletic competition. b. meetings between group leaders. c. having the two groups share meals together. d. emergencies that required the cooperation of both groups.
Alex and Barbara are asked to estimate the size of a crowd. Alex is asked whether the crowd is bigger or smaller than 10,000 whereas Barbara is asked whether the crowd is bigger or smaller than 2,000
The fact that Alex would give a larger estimate could best be explained by a. the representativeness heuristic. b. mental set. c. the anchoring bias. d. self-imposed limitations. e. cognitive maps.
Which statement is NOT true of hormone replacement therapy?
a. It lowers the risk of most types of cancer. b. It helps to alleviate such symptoms as hot flashes, night sweats, and dry skin. c. It reduces the risk of urinary tract infections. d. It reduces the risk of osteoporosis and heart disease.
In low-SES families with many daily stresses, attachment generally
A) changes from insecure pattern to another. B) remains stable. C) moves toward security. D) fluctuates between security and insecurity.