(Thinking Critically) Many psychologists are opposed to the use of lie detectors because
A) they represent an invasion of a person's privacy and could easily be used for unethical purposes.
B) there are often serious discrepancies among the various indicators such as perspiration and heart rate.
C) polygraphs cannot distinguish the various possible causes of arousal.
D) they are accurate only about 50 percent of the time.
Correct Answer:
Verified
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A)lying.
B)brain rhythms.
C)chemical
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