Frequently Asked Questions
The following questions address common topics raised by individuals, organizations, legal professionals, and other parties seeking information regarding polygraph examinations and related services.
Examination Basics
What is a polygraph examination? A polygraph examination is a structured credibility-assessment process used to evaluate the truthfulness of information relating to specific issues. It is not an interrogation and is conducted in accordance with accepted professional standards and established testing methodologies.
How accurate is a polygraph examination? When conducted by a properly trained examiner using validated techniques, polygraph examinations are considered a highly reliable investigative and credibility-assessment tool. However, like any professional assessment process, no examination method is infallible.
What happens during a polygraph examination? A typical examination consists of a pre-test interview, a data collection phase, and an analysis phase.
How long does an examination take? Most examinations require several hours, including preparation, discussion of test issues, testing, and analysis.
Will I be told the questions before the examination? Yes. Examination questions are reviewed and discussed with the examinee during the pre-test interview before testing begins. The purpose of the examination is not to surprise the examinee, but to ensure that all relevant issues and questions are clearly understood before testing commences.
Reliability And Results
Professional Standards
Practical Considerations