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 the test, it is possible to deceive the m... More » World View Social Sciences Psychology

According to a National Security Agency (NSA) whistle-blower, Russell Tice, it is possible to beat a polygraph by skewing the initial data and forcing strong reactions in response to known lies. He also suggests daydream... More » Government & Politics Law Enforcement

Antidepressant medications such as lithium, Prozac, Valium or Xanax can cause skewed results on polygraph tests, claims American Polygraph Services. However, it goes on to state that these results are immediately visible... More » Health
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In order to pass a predictive index test, the employee has to prove that they are decisive, comfortable speaking about themselves and friendly in the work environment. Avoiding strong answers and sticking with neutral op... More » World View Social Sciences Psychology

The normal resting vital sign ranges for a healthy adult are a breathing rate of 12 to 18 breaths per minute, a heartbeat of 60 to 100 beats per minute, and a temperature between 97.8 to 99.1 degrees Fahrenheit, accordin... More » Health Medical Ranges & Levels