CAN NERVOUSNESS CAUSE AN EXAMINEE TO FAIL A POLYGRAPH TEST?
No. Nervousness is a constant. In other words, you cannot turn your nervousness off for one test question and then back on for the next test question. Your nervousness is present throughout the testing process. Plus, when reviewing and numerically scoring your polygraph charts, a well trained and experience polygraph examiner can evaluate the difference between a nervous reaction and a reaction caused by a deceptive answer to one of the polygraph test questions. This is why the education, training, and experience of the polygraph examiner is critical. The bottom line: Nervousness will not cause deceptive reactions, but lying will.
