The observational method is best at answering which of these questions?
a. How polite are people in public places?
b. Are people from the Southern United States more polite in public places than people from the Northern United States?
c. What makes people act politely or rudely in public places?
d. Does music played in department stores influence how polite people are in those stores?
Answer: A
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Ewald Hering proposed the opponent-process theory of color vision which claims:
a. Three types of color receptors are responsible for afterimages. b. The four types of color receptors are sensitive to red, green, blue and the brightness of the light. c. A red-green cone can transmit messages for red and green at the same time. d. Staring at a green, black, and yellow flag for 30 seconds will not disturb the perception of color.
Kurt studies men and women’s responses to persuasive advertisements. This is best described as a(n) ______.
A. experimental study B. before-and-after design C. correlational design D. nonequivalent-control-group design