Polygraph Glossary Technique

Pre-Employment Polygraph

Also known as — Applicant Screening

Definition

A polygraph examination administered as part of the hiring process, primarily for law enforcement, intelligence, and security positions. Addresses topics such as criminal history, drug use, integrity, truthfulness on the application, and (for federal positions) foreign contacts. Subject to EPPA restrictions in the private sector. Government employers are exempt from EPPA prohibitions.

What Is Pre-Employment Polygraph?

Pre-Employment Polygraph (Applicant Screening) is a polygraph testing technique. A polygraph examination administered as part of the hiring process, primarily for law enforcement, intelligence, and security positions. Addresses topics such as criminal history, drug use, integrity, truthfulness on the application, and (for federal positions) foreign contacts. Subject to EPPA restrictions in the private sector. Government employers are exempt from EPPA prohibitions.

How Pre-Employment Polygraph Works in Practice

As a polygraph testing technique, Pre-Employment Polygraph follows structured protocols for question presentation and physiological data collection. The technique is used within the broader framework of Psychophysiological Detection of Deception and must be administered by a trained, APA-member examiner following established Standards of Practice.

During a polygraph examination using this approach, the examiner collects physiological data across multiple channels — respiratory, electrodermal, cardiovascular, and movement — while presenting a structured sequence of relevant, comparison, and irrelevant questions. The examinee's differential physiological responses to these question types form the basis for the diagnostic or screening opinion.

Scoring and Data Analysis

Results from examinations using this technique are analysed using validated Test Data Analysis methods. These include manual numerical scoring systems (3-position or 7-position scales) and automated computerised scoring algorithms such as OSS-3, PolyScore, or ESS. The choice of scoring method affects the balance between sensitivity (detecting deception) and specificity (confirming truthfulness), as well as the inconclusive rate.

Related Terms

Understanding Pre-Employment Polygraph in context requires familiarity with several related polygraph concepts:

Key Takeaways

Pre-Employment Polygraph is an important concept within the field of Psychophysiological Detection of Deception. Whether you are a polygraph examiner, student at an APA-accredited training program, legal professional evaluating polygraph evidence, or a private individual preparing for a lie detector test, understanding this term and its relationship to other polygraph concepts will help you navigate the field with greater confidence and knowledge.

The science of polygraph testing has evolved significantly over more than 100 years, from the early work of William Moulton Marston and Leonarde Keeler to today's digital instruments and validated scoring algorithms. Every term in this glossary represents a piece of that scientific and professional heritage. For a comprehensive overview, visit the Polygraph Examiner Hub or use our examiner selection guide to find a professional examiner near you.

Cross-references

More technique terms in this glossary

CSPCounterintelligence Scope Polygraph A screening polygraph examination focused specifically on counterintelligence issues including espionage, sabotage, a... key word method The key word method requires examinees to repeat an important word from each test question along with their yes/no an... guilt complex test The guilt complex test is a PDD format in which the examinee is tested on a fabricated crime to determine whether the... card test The card test is a type of stimulation test in which the examinee selects a card from a deck and is then tested on th... Raskin CQTUtah CQT A variant of the Comparison Question Test developed by David Raskin at the University of Utah. One of the earliest sc... positive control pair A positive control pair combines the subjective truth question and subjective lie question to form a set in the Posit...

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