Extra Post: Polygraphy

          Everyone always says, "I passed the lie detector so I'm telling the truth." Well, it turns out that a polygrapher is false and is not accurate at all when it comes to telling if somebody is lieing or not. People claim that the device has a 90% validity rate but that is far from the truth. There was an experiment performed by the National Academy of Science and they concluded that the polygraph was "unreliable, unscientific, and biased." There have been many false positives that the device has given out which has been one of its biggest flaws. However, it is still very popular and used in the U.S today. In 2013, about 70,000 job applicants were polygraphed by the government. I guess the real question is why are we still using this test when it proves to be unreliable?






https://www.youtube.com/watch?v=-FKx7yut9rM