Special Agent Entrance Practice Exam

Question: 1 / 400

What is the purpose of a polygraph test?

To analyze physical fitness levels

To assess the truthfulness of a subject through physiological responses

The purpose of a polygraph test is to assess the truthfulness of a subject through physiological responses. This test measures various physiological indicators such as heart rate, blood pressure, respiratory rate, and skin conductivity while the subject answers questions. The underlying premise is that deceptive answers may provoke physiological responses that can be distinguished from those associated with truthful responses.

Polygraphs are commonly used in investigations to ascertain the honesty of individuals regarding potentially sensitive information or incidents. By evaluating these physiological changes during questioning, examiners can infer the likelihood of deception, making this answer accurate. This technique is employed in various settings, including law enforcement and employment screenings, to gather insights into a subject's integrity and credibility.

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To determine intelligence quotients

To verify alibis of suspects

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