Polygraph Limitations
The polygraph measures physiological responses like blood pressure and skin conductivity, but it does not directly measure lying. While trained individuals can detect deception at better-than-chance levels in controlled settings, real-world applications suffer from high false positive rates and observer bias, making the results often unreliable. Techniques exist to manipulate outcomes, further complicating the validity of polygraph tests.In this clip
From this podcast
The Science of Everything Podcast
Episode 50: Science Myths and Misconceptions
Related Questions