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Xithras

(16,191 posts)
7. There was a study done years ago that put its accuracy at 61%
Thu Dec 6, 2012, 01:40 PM
Dec 2012

Better than random chance, but not by a hell of a lot.

By the way, do you know what the great secret is to beating them? Be in a good mood, and stay that way. The more nervous you are, the more accurate they are.

Of course, smart people just say no to them anyway. Even if you're innocent, a passed polygraph will not exonerate you if the police suspect you of a crime...but failing one will make you their ONLY suspect. When you're accused of a crime, there's rarely any benefit for the accused to take one.

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