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Frequently Asked Questions Regarding a Polygraph Test

Polygraph test is something that can make any person taking it nervous for straightaway spilling the truth of their statements. Since as a layman many are oblivious to how it exactly works and what all are the things that can possibly affect a polygraph test, a few FAQs have been answered below.

Does taking polygraph test cause any pain?

The answer to this question is an emphatic no. a lot people have a misconception that polygraph tests involve electric shocks on being connected to the polygraph instrument. The truth is, there is not even a slight possibility of you getting an electric shock or experience any pain. There is a bit of pressure experienced from the cuff tied around the arm for recording blood pressure.

Can someone be forced to take a polygraph test?

No, administering a polygraph test has a set ethical considerations and it doesn’t work that way. You hold all the rights to refuse taking a polygraph test. A complete cooperation from the person taking a polygraph test is required. A successful administration of a polygraph test requires the examinee to sit still and not move the body parts unnecessarily or meddle with hands and fingers.

How can nervousness affect the polygraph test results?

It is natural to get nervous when you are taking a polygraph test especially when you are innocent. Since it is but natural, even the examiner is well aware of the fact. Physiological responses resulting from nervousness are completely different from the body reactions from deception. So, the nervous reactions recorded on a polygraph chart are not considered for interpretations by the examiner. Once you start taking the polygraph examination, the examiner tries his level best to make you feel comfortable and less nervous about the test.

Can the result of polygraph test be affected by the condition of hypertension?

This question is a common query since a polygraph test involves recording of blood pressure. Hypertension doesn’t cause any physiological reactions that indicate that a person is not telling the truth. Both hypertension and deception form different types of curves on a polygraph chart. Despite the examinee suffering from hypertension, a truthful answer is evident.

Can a person know the questions that would be asked in polygraph test beforehand?

Yes, the examiner takes time before the test to formulate and review all the questions to be asked before actually asking them. Polygraph tests don’t come with trick or surprise questions. Being an examinee, you can also specify certain questions that you don’t want to be asked.

While these are the most basic queries people have regarding a polygraph or lie detector tests, there can be more. For more details, visit

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David King – who has written posts on Advertise Your Discover.