London - Saba:
Questions are being raised about the possibility and accuracy of what is popularly known as the "lie detector", given its goal of catching people lying. But is the lie detector as accurate as we believe in popular culture?!
A report published in the Britannica Encyclopedia provided details on the subject, and the report said that one of the essential elements in television crime shows is the image of the suspect sweating in the interrogation room while investigators use a lie detector test to determine whether the suspect is innocent or guilty.
The lie detector, which is often shown in these television shows as a sure way to determine a person's guilt, is popularly known as the "lie detector", given its goal of catching people lying. But is the lie detector as accurate as we believe in popular culture? In short: "lie detector" may not be the best title for a lie detector.
Lie detectors measure sweating, pulse rate, and other physiological factors in the person being tested.
In this way, lie detector tests are accurate in measuring what they are supposed to detect: nervous arousal. When a person is given a lie detector test, the examiner begins by asking two types of control questions: questions that the person is expected to answer truthfully and questions that the person is expected to answer falsely (often the examiner asks the person to write down a number and then asks, “Did you write down 1?” “Did you write down 2?” and so on to get the desired answers).
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