THE PSYCHOLOGY OF EMOTIONS
PSYCHOLOGY MOTIVATION AND EMOTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A polygraph cannot really detect the difference between arousal caused by anxiety and that caused by lying.
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Polygraph tests can easily be fooled.
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People who pass lie detector tests are innocent, but those who fail are not necessarily guilty.
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While widely used by police and government agencies, polygraphs often fail to identify the guilty.
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Detailed explanation-1: -The accuracy (i.e., validity) of polygraph testing has long been controversial. An underlying problem is theoretical: There is no evidence that any pattern of physiological reactions is unique to deception. An honest person may be nervous when answering truthfully and a dishonest person may be non-anxious.
Detailed explanation-2: -Polygraphs measure physiological arousal factors, including heart rate, blood pressure, respiration, perspiration, and skin conductivity. The theory of the lie detector test is that these physiological responses will be different when the subject is truthful versus when the subject lies.
Detailed explanation-3: -Instinct is any unlearned behavior, transmitted by genetics, species specific, and displayed by all members of a species.
Detailed explanation-4: -Polygraph A machine that records a person’s physiological responses to questions asked by an examiner. It measures physiological arousal, such as a rapid heart rate, quickened breathing, raising blood pressure, and increased skin moisture.