Why is the term "lie detector test" inaccurate?

Question

Quizplus · Accepted Answer

"Lie detector test" is inaccurate because the test measures changes in arousal, such as heart rate, blood pressure, and respiration, but it does not actually detect lying. Therefore, choice A is the best answer. Choices B and C are partially correct, but they do not fully explain why the term "lie detector test" is inaccurate. Choice D is incorrect because polygraphs are designed to detect arousal, not lying, and computers do not have the ability to detect lies either.

Why Is the Term "Lie Detector Test" Inaccurate