Premium Only Content

I Took an IQ Test to Find Out What it Actually Measures
If you’re looking for a molecular modeling kit, try Snatoms – a kit I invented where the atoms snap together magnetically – https://ve42.co/SnatomsV
▀▀▀
A huge thank you to Emeritus Professor Cecil R. Reynolds and Dr. Stuart J. Ritchie for their expertise and time.
Also a massive thank you to Prof. Steven Piantadosi and Prof. Alan S. Kaufman for helping us understand this complicated topic. As well as to Jay Zagrosky from Boston University's Questrom School of Business for providing data from his study.
▀▀▀
References:
Kaufman, A. S. (2009). IQ testing 101. Springer Publishing Company.
Reynolds, C. R., & Livingston, R. A. (2021). Mastering modern psychological testing. Springer International Publishing.
Ritchie, S. (2015). Intelligence: All that matters. John Murray.
Spearman, C. (1961). " General Intelligence" Objectively Determined and Measured. - https://ve42.co/Spearman1904
Binet, A., & Simon, T. (1907). Le développement de l'intelligence chez les enfants. L'Année psychologique, 14(1), 1-94.. - https://ve42.co/Binet1907
Intelligence Quotient, Wikipedia - https://ve42.co/IQWiki
Radiolab Presents: G. - https://ve42.co/RadioLabG
McDaniel, M. A. (2005). Big-brained people are smarter: A meta-analysis of the relationship between in vivo brain volume and intelligence. Intelligence, 33(4), 337-346. - https://ve42.co/McDaniel2005
Deary, I. J., Strand, S., Smith, P., & Fernandes, C. (2007). Intelligence and educational achievement. Intelligence, 35(1), 13-21. - https://ve42.co/Deary2007
Lozano-Blasco, R., QuÃlez-Robres, A., Usán, P., Salavera, C., & Casanovas-López, R. (2022). Types of Intelligence and Academic Performance: A Systematic Review and Meta-Analysis. Journal of Intelligence, 10(4), 123. - https://ve42.co/Blasco2022
Kuncel, N. R., & Hezlett, S. A. (2010). Fact and fiction in cognitive ability testing for admissions and hiring decisions. Current Directions in Psychological Science, 19(6), 339-345. - https://ve42.co/Kuncel2010
Laurence, J. H., & Ramsberger, P. F. (1991). Low-aptitude men in the military: Who profits, who pays?. Praeger Publishers. - https://ve42.co/Laurence1991
Gregory, H. (2015). McNamara's Folly: The Use of Low-IQ Troops in the Vietnam War; Plus the Induction of Unfit Men, Criminals, and Misfits. Infinity Publishing.
Gottfredson, L. S., & Deary, I. J. (2004). Intelligence predicts health and longevity, but why?. Current Directions in Psychological Science, 13(1), 1-4. - https://ve42.co/Gottfredson2004
Sanchez-Izquierdo, M., Fernandez-Ballesteros, R., Valeriano-Lorenzo, E. L., & Botella, J. (2023). Intelligence and life expectancy in late adulthood: A meta-analysis. Intelligence, 98, 101738. - https://ve42.co/Izquierdo2023
Zagorsky, J. L. (2007). Do you have to be smart to be rich? The impact of IQ on wealth, income and financial distress. Intelligence, 35(5), 489-501. - https://ve42.co/Zagorsky2007
Strenze, T. (2007). Intelligence and socioeconomic success: A meta-analytic review of longitudinal research. Intelligence, 35(5), 401-426. - https://ve42.co/Strenze2007
Deary, I. J., Pattie, A., & Starr, J. M. (2013). The stability of intelligence from age 11 to age 90 years: the Lothian birth cohort of 1921. Psychological science, 24(12), 2361-2368. - https://ve42.co/Deary2013
Flynn, J. R. (1987). Massive IQ gains in 14 nations: What IQ tests really measure. Psychological bulletin, 101(2), 171. - https://ve42.co/Flynn1987
Why our IQ levels are higher than our grandparents' | James Flynn, TED via YouTube - • Why our IQ levels are higher than our...
Duckworth, A. L., Quinn, P. D., Lynam, D. R., Loeber, R., & Stouthamer-Loeber, M. (2011). Role of test motivation in intelligence testing. Proceedings of the National Academy of Sciences, 108(19), 7716-7720. - https://ve42.co/Duckworth2011
Kulik, J. A., Bangert-Drowns, R. L., & Kulik, C. L. C. (1984). Effectiveness of coaching for aptitude tests. Psychological Bulletin, 95(2), 179. - https://ve42.co/Kulik1984
▀▀▀
Special thanks to our Patreon supporters:
Adam Foreman, Amadeo Bee, Anton Ragin, Balkrishna Heroor, Benedikt Heinen, Bernard McGee, Bill Linder, Burt Humburg, Dave Kircher, Diffbot, Evgeny Skvortsov, Gnare, John H. Austin, Jr., john kiehl, Josh Hibschman, Juan Benet, KeyWestr, Lee Redden, Marinus Kuivenhoven, MaxPal, Meekay, meg noah, Michael Krugman, Orlando Bassotto, Paul Peijzel, Richard Sundvall, Sam Lutfi, Stephen Wilcox, Tj Steyn, TTST, Ubiquity Ventures
▀▀▀
Written by Derek Muller, Casper Mebius, & Petr Lebedev
Edited by Trenton Oliver
Filmed by Derek Muller, Han Evans, & Raquel Nuno
Animation by Fabio Albertelli & Ivy Tello
Additional video/photos supplied by Getty Images & Pond5
Music from Epidemic Sound
Produced by Derek Muller, Casper Mebius, & Han Evans
-
2:20:24
Badlands Media
14 hours agoDevolution Power Hour Ep. 394: The Long Game, Media Traps, and Military Signals
76.8K20 -
2:08:38
TimcastIRL
8 hours agoNetflix Shares TANK, Elon Says BOYCOTT After Writer MOCKS Charlie Kirk Assassination
214K167 -
8:48:01
SpartakusLIVE
10 hours agoI'M BACK || Quads w/ The Boys
79.4K4 -
9:33
Ken LaCorte: Elephants in Rooms
13 hours ago $3.17 earnedWhy Do Black Men Love Big Butts?
27.1K16 -
2:12
From Zero → Viral with AI
1 day ago $6.44 earned🚀 AI Marketing Isn’t Just for Big Brands Anymore — Here’s Why
42.2K10 -
9:51:58
Dr Disrespect
16 hours ago🔴LIVE - DR DISRESPECT - 10 WINS ON CONTROLLER - BO7 TOMORROW
311K20 -
1:24:56
Glenn Greenwald
10 hours agoTrump Declares Cities as the Enemies Within; Reagan Appointed Judge Slams Trump Over Speech Crackdowns; American ER Doctor on Gaza Atrocities | SYSTEM UPDATE #524
142K96 -
4:07:42
I_Came_With_Fire_Podcast
16 hours agoPete Hegseth and the Chamber of Standards | Digital IDs | Taiwan Chips & Salsa | CDL Crisis
37.9K2 -
2:01:46
Adam Does Movies
15 hours ago $0.64 earnedTalking Movies + Ask Me Anything - LIVE
23.1K -
29:11
Nick Shirley
8 hours ago $5.54 earnedPortland has Fallen... ANTIFA Take Control of City
23.5K45