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IMPORTANT: Here is the official website of KIT High Range IQ Test. KIT High Range IQ Test posted outside of this site is invalid, unscored, and will not be accepted.

■ Introduction

KIT (Kim's Intelligence Test) is a high range IQ test created by YoungHoon Kim. The standard IQ tests such as Stanford–Binet and Wechsler measure up to IQ 160 (SD15), but KIT High Range IQ Test aims to measure up to at or above IQ 190 (SD15) theoretically. 

■ High Range IQ Test

High-range IQ tests were developed experimentally to measure IQ in the very high range. The more common official IQ tests, such as the Wechsler and Stanford-Binet, are limited in that they measure adult IQ only to approximately IQ 160 (SD 15). Theoretically, however, human intelligence can be calculated statistically up to roughly IQ 195 (SD 15) and high range IQ tests have been developed as a result of this statistical reason. The method of standardization for these high-range IQ tests can be said to have a strong experimental tendency, because obtaining sufficient data is difficult due to the rarity of the measurement range. Scores based on the preliminary norm are also subject to similar skepticism. Even so, it is difficult to deny the reliability and validity of high-range IQ tests, given that the people who perform well on them also perform well on the official IQ tests.

■ Test Creator

As of 2024, YoungHoon Kim is the current highest IQ record holder certified by Korea Record Institute, World Genius Directory, Global Genius Registry, Esoteriq Society, GIGA Society, and recognized by World Mind Sports Council, including World Memory Championships, World Speed Reading Championships, World Mind Mapping Championships (IQ 276, SD24). With perfect scores on various experimental high range intelligence tests, he is a Lifetime Member of the Mega Society, the world's highest IQ society which was the only one listed in Guinness World Records in history (also having full memberships from Mensa to GIGA Society with the highest IQ score in the world). In 2024, he was reported as number one in the world among the 50 people with the highest IQ in Reader’s Digest, one of the top three magazines in the United States in terms of sales volume. (The representative cover model of Reader’s Digest is U.S. President Barack Obama.)

In the mind sports field, YoungHoon Kim is the highest IQ specialist advisor at the World Mind Sports Council, World Memory Championships, World Speed-Reading Championship, and World Mind Mapping Championship; He was the first South Korean arbiter at the World Memory Championships and Asia Pacific Memory Championships.


As the President and CEO, YoungHoon Kim founded a non-profit organization, the United Sigma Intelligence Association for the world’s brightest minds, which includes seven Nobel Prize winners. From his organization, the greatest minds in the world such as Noam Chomsky, Yuval Harari, Richard Dawkins, Howard Gardner, Neil deGrasse Tyson, Anthony Giddens, and Terence Tao have received official awards with the winners’ consent.


YoungHoon Kim studied degrees in psychology, neuroscience, counseling & coaching, linguistics, sociology, philosophy, and nondenominational theology at King’s College London Institute of Psychiatry, Psychology & Neuroscience, University of London, Korea University, and Yonsei University (#1 private university in Asia). He was also nominated for an Honorary Doctor of Science by Queen Mary, University of London in 2024. Currently, as a research partnership advisor, he is collaborating with the research lab and center at the University of Cambridge and Yale University.

His detailed profile can be found here.

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