01 685 4715
info@liedetector.ie

Blog

How Accurate is a Polygraph Test?

APA LOGO

How Accurate is it?

Accuracy

The American Polygraph Association, the body responsible for a majority of research in this area lists a single issue test at up to 98% percent accurate, based on the test being conducted by a qualified examiner who uses the latest computerised equipment and who uses validated techniques. In other words, it is very accurate.

It is also important that the person taking the test follows the instructions given by the examiner as these instructions are designed to help the truthful person through the process. If you are not being truthful you will not pass the test.

Lie Detector?

A polygraph test does not ‘detect the truth’. It monitors your reactions, both voluntary and involuntary and records them so a qualified examiner can determine if you reacted in a way consistent with someone telling the truth. A polygraph is only as accurate as the test and the examiner. That is why there is so much importance put on the person doing the test, the type of test, the environment, and the examiner’s ability to observe and detect counter measures.

Reliability Factors

In summary, only the latest professional equipment, operated by an experienced and trained specialist, with APA certification and ongoing continuing education, can properly administer a test. Even then it is considered 95-98% accurate…not absolute. It is a guide, like asking a question, looking into someone’s eyes, or observing how they react to certain things, but it is based on thousands of tests and studies, not personal opinion or conjecture and is a diagnostic tool, like many others. In this case, a highly reliable one.

This website uses cookies . You consent to our cookies if you continue to use our website. Settings

Cookie settings

Below you can choose which kind of cookies you allow on this website. Click on the "Save cookie settings" button to apply your choice.

FunctionalOur website uses functional cookies. These cookies are necessary to let our website work.

AnalyticalOur website uses analytical cookies to make it possible to analyze our website and optimize for the purpose of a.o. the usability.

Social mediaOur website places social media cookies to show you 3rd party content like YouTube and FaceBook. These cookies may track your personal data.

AdvertisingOur website places advertising cookies to show you 3rd party advertisements based on your interests. These cookies may track your personal data.

OtherOur website places 3rd party cookies from other 3rd party services which aren't Analytical, Social media or Advertising.