Which of the following is true regarding lie detectors?
A)Polygraphs are accepted as valid evidence in most Canadian courts.
B)Research suggests that traditional polygraphs are about 78% accurate in detecting deceit.
C)Polygraphs are able to detect arousal,but are not valid indicators of lying.
D)Researchers have been unable to identify any techniques to measure deceit.

Question

Quizplus · Accepted Answer

Polygraphs measure physiological responses such as heart rate, blood pressure, and perspiration, which can indicate arousal or stress. However, these responses can be triggered by a variety of emotions, not just lying, making polygraphs unreliable as sole indicators of deceit.

Which of the Following Is True Regarding Lie Detectors