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Lie detectors (also known as polygraphs) measure vital signs in order to detect when a lie is being told, but by altering vital sign readouts during the control question phase of t...

About Lie Detector Tests
Lie detector tests are used to determine whether a person is telling the truth about a particular subject. Various forms of lie detection exist, ranging from polygraph tests, voice stress analysis and cognitive chronology. Each test uses scientific... More »
Difficulty: Easy
Source: www.ehow.com

Lie detection


edit]. There are typically three types of questions used in polygraph testing or voice stress analysis ...

Lie Detector Test | Polygraph Testing | GPN | Worldwide Services


GPN is the world's largest provider of lie detector tests and referrals. Polygraph tests can be scheduled with one of our experts at a location near you.

The Employee Polygraph Protection Act (EPPA) prohibits most private employers from using lie detector tests, either for pre-employment screening or during the course of employment. Lie detector tests can be administered under the following circumstances: Polygraph (a t... More »
By Alison Doyle, About.com Guide

4 Ways to Cheat a Polygraph Test (Lie Detector) - wikiHow


How to Cheat a Polygraph Test (Lie Detector). There are a variety of instances in which you may be subjected to a polygraph, or lie detector examination. These ...

The Truth About Lie Detectors (aka Polygraph Tests)


Lie detector tests have become a popular cultural icon - from crime dramas to comedies to advertisements - the picture of a polygraph pen wildly gyrating on a  ...

Couples Take A Lie Detector Test - YouTube


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Parents Do The Lie Detector Test - YouTube


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How Lie Detectors Work - HowStuffWorks


Lie detection is a consistently controversial topic -- how can a machine tell truth ... how a polygraph exam works and about the legalities of polygraph testing.

Popular Q&A
Q: Homemade Lie Detector Test.
A: A lie detector test, or a polygraph, actually consists of a number of tests that a person undergoes during questioning to try to determine whether or not they a... Read More »
Source: www.ehow.com
Q: Types of Lie Detector Tests.
A: Lie detector tests, also known as polygraph tests, are used to measure a person's blood pressure, pulse, respiration and breathing while asked a series of quest... Read More »
Source: www.ehow.com
Q: Are lie detector test a scam?
A: Recent research reveals that the accuracy of the new computerized polygraph stytem is close to 100%. report this answer. Updated on Wednesday, February 01 2012 ... Read More »
Source: www.kgbanswers.com
Q: Are lie detector tests accurate?
A: They are usually fairly accurate, unless you know how to trick them. There are lots of good websites online talking about how to do so. Read More »
Source: answers.yahoo.com
Q: Are lie detector tests accurate?
A: They measure accurately several physical parameters, but if those parameters (galvanic skin response (sweating), breathing, etc.) change as you lie - that is an... Read More »
Source: answers.yahoo.com