The Snellen chart is a tool that helps medical practitioners measure ______.
A. visual acuity
B. hearing loss
C. changes in the retina
D. irregularities in the ear drum
Answer: A
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One-sample z tests are seldom used because _____
a. the population mean and standard deviation are seldom both known b. the sample mean and standard deviation are seldom both known c. the calculations are too complex d. no conclusions can be drawn from the results of the test
Joseph Goebbels, Hitler's propaganda minister, used a technique called "The Big Lie." He knew that people begin to believe that a statement is true simply because it has been repeated a number of times. The formal name for this technique is:
a. the validity effect. b. groupthink. c. diffusion of responsibility. d. symbolic racism.
Which of the following is NOT true about animal research?
A. It accounts for only 7-8% of psychological research. B. 90% of animal research uses rats or mice. C. Animal researchers use punishments as often as they use rewards. D. Research benefits both human and nonhuman animals
After lunch, Katya enjoys a cup of coffee and a cigarette. Coffee and cigarettes are examples of ________.
Fill in the blank(s) with the appropriate word(s).