The lie detector is an unreliable instrument because
A)its accuracy depends on the manner in which questions are asked.
B)just being questioned causes one to be nervous and emotional.
C)it can be "fooled" at times by thinking upsetting thoughts during irrelevant questions.
D)all of these occur.

Question

Quizplus · Accepted Answer

All of these factors contribute to the unreliability of the lie detector. The accuracy of the lie detector test depends on the manner in which questions are asked. Just being questioned can make a person nervous and emotional, which can lead to inaccurate results. Additionally, the test can be "fooled" if a person thinks upsetting thoughts during irrelevant questions. Therefore, all of these factors make the lie detector an unreliable instrument.

The Lie Detector Is an Unreliable Instrument Because