Polygraph Test FAQ


Below please find some frequently asked questions about polygraph exams. If you have any other questions, please contact us.

Frequently Asked Questions

A polygraph, popularly referred to as a lie detector (test), is a credibility assessment device or procedure that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while a person is asked and answers a series of questions. It is administered by highly trained and certified examiners. The examiner scores the physical reactions made by the examinee and determines whether or not the examinee was deceptive.

According to the American Polygraph Association, their most recent metadata analysis reveals that depending on the polygraph test technique utilized, an extremely high accuracy rate is achievable up to 98%.

Polygraph Examinations generally start with a brief explanation of the equipment and polygraph process. A Pre-Test interview is then conducted to gather information necessary for the polygraph examiner to create relevant questions for the exam. Each question of the polygraph test is reviewed with the examinee. A short Acquaintance test is given prior to the actual polygraph examination. After the examination is conducted, a break is taken while the examiner scores the exam. A Post-Interview is done to review the results. Sometimes an additional exam is done to clarify inconclusive questions. You will know all of the questions asked on the exam beforehand. There are never surprise questions on the exam. Results of Infidelity reports will be e-mailed and not given at the time of the exam.

Generally, no. The Polygraph Examiner will do everything possible to put you at ease prior to the actual examination by answering all your questions and letting you know what to expect during the exam. A certain amount of anxiety is perfectly normal, and will not affect the outcome of the examination. Take your regular medication but do not take any medication prior to your exam in an effort to relax.

Once the examination is completed it will be scored by Ms. Fegley and results provided on the same day. Written reports detailing results can be provided and is protocol in all PCSOT, Evidentiary, Pre-Employment and Security testing. Infidelity exam results are e-mailed. A quality control review of all of our examinations is offered at no additional cost to the client.

Only the examinee and the examiner can be in the room during the examination. Additional people present during the examination will adversely affect the test. All examinations conducted by SoCal Professional Polygraph are recorded from beginning to end for internal quality control purposes only. Audio and video recordings are not released.

A typical polygraph examination will include a Pre-Test Interview, the actual exam, a test data analysis phase and a Post-Test Interview. The polygraph process generally lasts 90 minutes to 2-hours from beginning to end. Pre-employment exams may take longer.