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J Forensic Sci. 2016 Jan;61 Suppl 1:S237-40. doi: 10.1111/1556-4029.12960. Epub 2015 Sep 21.

ID-Check: Online Concealed Information Test Reveals True Identity.

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Department of Clinical Psychology, University of Amsterdam, Weesperplein 4, 1018XA, Amsterdam, The Netherlands.
Department of Psychology, Ghent University, H. Dunantlaan 2, 9000, Ghent, Belgium.
Department of Clinical Psychological Science, Maastricht University, Universiteitssingel 40, 6229 ER, Maastricht, The Netherlands.


The Internet has already changed people's lives considerably and is likely to drastically change forensic research. We developed a web-based test to reveal concealed autobiographical information. Initial studies identified a number of conditions that affect diagnostic efficiency. By combining these moderators, this study investigated the full potential of the online ID-check. Participants (n = 101) tried to hide their identity and claimed a false identity in a reaction time-based Concealed Information Test. Half of the participants were presented with personal details (e.g., first name, last name, birthday), whereas the others only saw irrelevant details. Results showed that participants' true identity could be detected with high accuracy (AUC = 0.98; overall accuracy: 86-94%). Online memory detection can reliably and validly detect whether someone is hiding their true identity. This suggests that online memory detection might become a valuable tool for forensic applications.


concealed information test; deception; forensic science; guilty knowledge; lie detection; memory detection; polygraph; reaction times

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