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Post by Cop2be on Oct 21, 2003 18:33:01 GMT -5
How many questions are generally on a polygraph?
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Post by George Maschke on Oct 21, 2003 20:43:53 GMT -5
During the "pre-test" phase (before you're hooked up to the polygraph instrument), you may be asked dozens of questions. Some departments have applicants fill out a pre-polygraph questionnaire that may run over a hundred questions. But during the "in-test" phase, the number of questions is typically limited to about 10-12 and consists of a mix of relevant, irrelevant, and so-called "control" questions. During the "post-test" phase, if any, you may be interrogated at length about any of the questions asked. You'll find all three phases described in much greater detail in Chapter 3 of The Lie Behind the Lie Detector (1 mb PDF). |
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