Chapter 14. Lie Detection

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Infographic Activity
by David Myers and Nathan DeWall
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Thinking Critically About: Lie Detection

Researchers have evaluated polygraph accuracy in detecting lies and discovered that they are not very accurate at all.

Quiz

Quiz

1.

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No, this would not confirm lying, because truth-telling people can also get anxious or respond emotionally when asked about an emotional event.

2.

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Higher accuracy may be obtained by asking about details of a crime that only a guilty person would know. For example, an examiner may check to see if a person’s arousal is greater when asked about a specific weapon among other weapons, or a specific stolen item among other possibilities.