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A polygraph test can be passed by manipulating the body's response to control questions. A participant's lies are only considered lies when they register a higher response than control questions. The results can therefor... More »

A person can beat a polygraph test by triggering strong reactions during the test questions and remaining calm as the pertinent questions come up, according to Elizabeth Flock for U.S. News & World Report. Causing pain t... More »

Options for inexpensive polygraph tests include using online tests, buying polygraph software, buying a polygraph machine, opting for a voice test and negotiating with professional polygraph administrators, according to ... More »

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