To test whether people in bars drink more when they are in groups than when they are alone, researchers visited all the pubs in a city. They ordered beers and recorded observations on napkins and pieces of newspaper

Why did they keep their identities in disguise?

a. They were conducting a double-blind study.
b. They wanted to make sure the study had test-retest reliability.
c. They needed to determine the experimenter effects in the study at a later point in time.
d. They wanted the people they were observing to behave naturally.


Answer: d

Psychology

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