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Questions and Answers
During a polygraph test, a trained polygraph examiner starts by asking the subject a series of yes/no questions to which the answers are known, such as name, age, and today’s date. The physiological responses collected during this round of questioning establish a baseline for the subject’s vital signs. This baseline data serves as control or reference data on how the subject’s body responds physiologically when they are telling the truth.
What purpose does the baseline data collected during the initial round of questioning serve?
What does a polygraph examiner use the known-answer questions for?
Study Notes
Polygraph Test Process
- A trained polygraph examiner starts by asking a series of yes/no questions to establish a baseline for the subject's vital signs.
- The initial questions have known answers, such as name, age, and today's date.
- The baseline data serves as control or reference data on how the subject's body responds physiologically when they are telling the truth.
- The examiner uses the known-answer questions to establish a physiological response baseline for the subject.
- The purpose of the baseline data is to provide a reference point for comparison during the rest of the test.
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Description
Test your knowledge on polygraph tests and learn about the process of establishing baseline data for a subject's vital signs. Discover how trained polygraph examiners use this control data to analyze physiological responses during questioning. Take the quiz now!
