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Old 11 September 2009, 03:19 AM
Steve Eisenberg Steve Eisenberg is offline
Join Date: 15 October 2001
Location: Philadelphia, PA
Posts: 11,841

Originally Posted by Photo Bob View Post
For instance if you are taking a polygraph for a job interview and the questions are run of the mill "have you ever stolen from an employer, told a significant lie, committed fraud, etc", but the next question was "did you know your spouse is cheating on you?" the shock of the question might draw a reaction no matter your response. Naturally a competant polygrapher would not do that.
A competent polygrapher would know that the machine cannot tell if you lied. He is she is using the machine as an interrogation tool (e.g. to obtain confessions). If the polygraph examiner actually believed polygraph propaganda, that would, I think, show incompetence.
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