When Supreme Court Justice Blackmun heard that the prediction of violence is wrong two out of three times, he concluded that predicting violence using a coin flip would be more accurate. Why was he wrong?
a. The specificity of a coin flip is above 50 percent.
b. The sensitivity of a coin flip is above 50 percent.
c. The base rate of violence is much lower than 50 percent.
d. The coin flip is random, not based on clinical judgment.
Answer: c.
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"When I see the color blue, I see the numbers 12 and 42." This mixing of the senses is called:
A. synesthesia B. dementia C. perception D. phi phenomenon
For Watson, the goal of psychology is to:
a. solve the mind-body problem b. predict and control behavior c. discover the elements of thought d. prove that human animals and nonhuman animals are essentially the same
A study examining differences in throwing performance (distance thrown) among children ages 5, 10, and 15 years and using data about all age groups collected on the same day, is an example of
A. cross-sectional research B. longitudinal research C. ethnographic research D. cohort research
Internal stimuli, such as the arrival of food in the digestive system, normally activate a. the somatic nervous system
b. the parasympathetic nervous system. c. the sympathetic nervous system. d. both the parasympathetic and sympathetic nervous systems.