Polygraph measurements — derived from changes in blood pressure, breathing depth, and skin conductivity of an electric current — have never been proved to be reliable indicators of deception. Not only ...

The polygraph examination is a key component of the security clearance process for individuals seeking access to classified information in sensitive government positions, usually within the ...

Science says you might as well flip a coin.

The Department of Homeland Security (DHS) is using polygraph tests to figure out who could be leaking information to news outlets, with some agency officials contending the disclosed information has ...

About two weeks ago, I received word that a close friend of mine from elementary school (I'll be altering a few details to protect this friend's identity) - let's call her Ellen - failed a required ...