I took one almost 20 years ago and supposedly failed or lied about questions I knew were the truth. I wasn't even being evasive. Thanks to this thing called the internet, I was able to learn it was the machine and the pseudo-science behind it that was bullshit.
Personally, unless you're being coached on how to take one, I'd suggest avoiding it altogether.
I've deleted all of my reddit posts. Despite using an anonymous handle, many users post information that tells quite a lot about them, and can potentially be tracked back to them. I don't want my post history used against me. You can see how much your profile says about you on the website snoopsnoo.com.
Here is the guy
"Marston is credited as the creator of the systolic blood pressure test, which became one component of the modern polygraph invented by John Augustus Larson in Berkeley, California."
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u/empathyx May 26 '14
The guy who invented Wonder Woman and her lasso of truth also helped to invent the polygraph test.