What is a polygraph?
A) the best-known physiological measure associated with evaluating truthfulness
B) the graph that shows the plots of multiple personality assessments for one test taker
C) a valid measure of truthfulness and honesty used for choosing job applicants for hire
D) a valid neuropsychological measure of truthfulness and honesty

Question

Quizplus · Accepted Answer

A polygraph, also known as a lie detector, is the best-known physiological measure associated with evaluating truthfulness. It measures changes in a person's heart rate, blood pressure, respiration, and perspiration while they answer questions, which are then analyzed to determine if the person is lying. However, it is not a foolproof way to detect lies and is not considered a valid measure of truthfulness and honesty for job hiring purposes.

What Is a Polygraph