• 5 Posts
  • 33 Comments
Joined 5 years ago
cake
Cake day: March 23rd, 2020

help-circle




  • As someone who has taken a polygraph, there’s nuance.

    First, they’re unreliable because they can be beat- but neither you or I are beating them, you have to be trained to beat it.

    Second, the reason they don’t work is because you can just not talk. But if you’re forced to talk to keep your job, you’re gonna show lots of lying indicators.

    Third, it’s not a binary “did you lie”. They’re watching your blood pressure, heart rate, detecting any fidgets; things you subconsciously do when you lie. The person administrating the polygraph will then press you into a confession.

    Polygraph is the biggest snake oil in contemporary crime “science” and frankly its infuriating that it still exists and everyone who defends it should be bullied into returning back to sanity.

    Edit: Not going to bother responding to the silly replies from armchair psychologists who feel smart “knowing” polygraphs are unreliable. For the vast majority of the population, when answering binary questions, you will answer them differently depending on whether or not you lie. Regardless of whether or not “this is admissible in court”, it’s more than enough to deny someone a clearance renewal. Rub your brain cells together and extrapolate.