Chris Langan is an American man who is credited by some sources with an IQ score of 195. Chris himself claims it is “somewhere between 190 and 210”. While Professor Dave disputes this claim, YouTuber Omni has defended it, asserting there are multiple sources vindicating Chris’ alleged IQ scores. I checked Omni’s sources and concluded he is wrong. In this video I expose Chris’ fake IQ score.
Media credits
Jacobsen, Scott Douglas. “Second Pass of the World Intelligence Network 3.13-4.8 Sigma Societies.” News Intervention, 22 October 2020. https://www.newsintervention.com/second-pass-of-the-world-intelligence-network-3-13-4-8-sigma-societies/.
Omni. “‘Professor’ Dave Is a FRAUD (Debunking His CTMU Hit-Piece, Point by Point).” YouTube, 2 January 2025. https://www.youtube.com/watch?v=e8NNCBJEZoM.
Professor Dave Explains. “Chris Langan: The Dumbest ‘Smartest Man’ in the World.” YouTube, 17 November 2024. https://www.youtube.com/watch?v=SDmcoYpTTbE.
“What Are the Factors That Affect the Results of an IQ Test? – IQ Metrics,” 20 March 2024. https://iqmetrics.org/what-are-the-factors-that-affect-the-results-of-an-iq-test/.
Sources
Carlson, Roger D. “The Mega Test.” Test Critiques. Edited by Daniel J. Keyser and Richard C. Sweetland. Vol. VIII. Test Corporation of America, 1991.
Flew, William. “The One-in-a-Million I.Q. Test.” Omni Magazine SF Short Stories, April 1985. https://www.williamflew.com/omni79d.html.
forelelyon. “Chris Langan ABC Smartest Man in the World.” YouTube, 16 April 2009. https://www.youtube.com/watch?v=1cy9o0lSJpk.
Jacobsen, Scott Douglas. “Second Pass of the World Intelligence Network 3.13-4.8 Sigma Societies.” News Intervention, 22 October 2020. https://www.newsintervention.com/second-pass-of-the-world-intelligence-network-3-13-4-8-sigma-societies/.
McWhirter, Norris, and Donald McFarlan. The Guinness Book of Records : 1989. Enfield, Middlesex : Guinness Pub., 1988. http://archive.org/details/guinnessbookofre00dona.
Miyaguchi, David. “Mega Test Norms.” Miyaguchi 4 Sigma, 1 November 1997. http://miyaguchi.4sigma.org/hoeflin/meganorm.html.
Omni. “‘Professor’ Dave Is a FRAUD (Debunking His CTMU Hit-Piece, Point by Point).” YouTube, 2 January 2025. https://www.youtube.com/watch?v=e8NNCBJEZoM.
Professor Dave Explains. “Chris Langan: The Dumbest ‘Smartest Man’ in the World.” YouTube, 17 November 2024. https://www.youtube.com/watch?v=SDmcoYpTTbE.
Ryan, Joseph J., and Summer D. Schnakenberg-Ott. “Scoring Reliability on the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III).” Assessment 10.2 (2003): 151–59. https://doi.org/10.1177/1073191103010002006.
Saunders, Toby, and Tilda Howard. “The Highest IQ Recorded in the World in 2024.” BBC Science Focus Magazine, 1 November 2024. https://www.sciencefocus.com/science/who-has-the-highest-iq.
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“Chris Langan FAQ – CTMU Wiki.” CTMU Wiki, 20 August 2018. https://ctmucommunity.org/wiki/Chris_Langan_FAQ.
“Mega Test.” Hmolpedia A65, 2020. https://www.eoht.info/page/Mega%20Test%20IQ.
“Overview of the WAIS–IV/WMS–IV/ACS.” Pages 1–73 in WAIS-IV, WMS-IV, and ACS. By Lisa Whipple Drozdick, James A. Holdnack, Lawrence G. Weiss, and Xiaobin Zhou. Elsevier, 2013. https://doi.org/10.1016/b978-0-12-386934-0.00001-8, https://linkinghub.elsevier.com/retrieve/pii/B9780123869340000018.
“Overview of the WAIS–IV/WMS–IV/ACS: Advanceed Clinical Interpretation.” Pages 1–73 in WAIS-IV, WMS-IV, and ACS. By Lisa Whipple Drozdick, James A. Holdnack, Lawrence G. Weiss, and Xiaobin Zhou. Elsevier, 2013. https://doi.org/10.1016/b978-0-12-386934-0.00001-8, https://linkinghub.elsevier.com/retrieve/pii/B9780123869340000018.
“The Smart Guy | ABC News 20/20.” ABC News, 9 December 1999. https://web.archive.org/web/20000817050534/https://abcnews.go.com/onair/2020/transcripts/2020_991209_iq_trans.html.
“What Are the Factors That Affect the Results of an IQ Test? – IQ Metrics,” 20 March 2024. https://iqmetrics.org/what-are-the-factors-that-affect-the-results-of-an-iq-test/.
