March 27, 2026
Relevant-Irrelevant (RI) Format: Consumer Guide
Learn how the Relevant-Irrelevant (RI) polygraph format works, its history from the 1920s, how it compares to the CQT, and where it's still used…
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Tag: <span>polygraph format</span>
March 26, 2026
History of the Relevant-Irrelevant Test: Polygraph’s First Format
Explore the full history of the Relevant-Irrelevant Test — polygraph's first questioning format developed in 1921 — from Larson to Keeler to modern CQT.
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