Some security clearance applicants may be asked to take a second, or even a third polygraph in an attempt to get conclusive results. Polygraph "inconclusive" - Police Forums & Law Enforcement Forums This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2023 wikiHow, Inc. All rights reserved. wikiHow is where trusted research and expert knowledge come together. It does not hurt to familiarize yourself with the basics on your own, but avoid polygraph horror stories posted on the Internet, since these will only make you more nervous than you need to be. "This article was very helpful especially explaining that they try to frighten you and that polygraphs can be, "Yes, thinking about stressful things while you take your test or having math questions in your head might help. Despite the continued employment of polygraph testing by law enforcement, the tests don't reliably or consistently work. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. The lines on the polygraph screen will never be flat and smooth, even if you are telling the truth. An inconclusive polygraph exam is not usually in itself cause for clearance denial. The instrument typically used to conduct polygraph tests consists of a physiological recorder that assesses three indicators of autonomic arousal: heart rate/blood pressure, respiration, and skin conductivity.