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In these lab tests, the mean absolute error was less than 2 years for ages 13 to 20. The testers called this strong performance for commercial systems used in retail. In school tests, they found good accuracy, with students within 2 to 3 years of a gate needing a further check. In the lab, more than half of 18-year-olds would have needed a further verification step at an 18+ gate. Most 12-year-olds passed a 13+ gate in the lab. The testers concluded that a buffer of at least 2 to 3 years is needed for reliable age gating. 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Age Estimation Test Report: YOTI. Dated 10 June 2025, version 1.1 of 21 July 2025 (archived copy). Evaluation Results, Table 2 and accompanying text.","title":"Age Estimation Test Report: YOTI","url":"https://web.archive.org/web/20260904094239id_/https://ageassurance.com.au/wp-content/uploads/2025/08/IndividualTestReport-YOTI_AE.pdf","date":"2025-06-10","written_by":"independent","quote":"In lab testing we observe a Mean Absolute Error of less than 2 years for ages 13 - 20, with a standard deviation of less than 1.3 years."},{"kind":"assessment report","citation":"Age Check Certification Scheme. Age Assurance Technology Trial, Part D: Age Estimation. August 2025 (archived copy). Its back cover names the department that commissioned the Trial. 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