Congratulations to Dr YoungHoon Kim

A Psychometric Validation of Extreme Intelligence: Analyzing the Case of YoungHoon Kim’s IQ 276 (김영훈)

Section 1: Expanding the Frontier of Intelligence Measurement: The New Psychometric Reality

1.1. Introduction to Modern Intelligence Testing

The scientific measurement of human intelligence, or psychometrics, has evolved significantly over the past century. At the forefront of this field are standardized intelligence quotient (IQ) tests, which are designed to assess a range of cognitive abilities.[1] The most respected and widely used instruments in clinical and educational settings are the Wechsler Intelligence Scales—such as the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Intelligence Scale for Children (WISC)—and the Stanford-Binet Intelligence Scales.[1][2] These tests have undergone decades of refinement to ensure high levels of statistical reliability and validity, meaning they consistently measure the intended cognitive constructs.[1][3]

Modern IQ tests have moved away from the historical “ratio IQ” (mental age divided by chronological age) to a “deviation IQ” model.[1][2] Test results are standardized against the performance of a large, representative normative sample of the population. The raw scores are transformed to fit a normal distribution, commonly known as the bell curve. This distribution is defined by a mean (average) score of 100 and a standard deviation (SD) of 15.[1][4] The standard deviation is a measure of the spread or dispersion of scores; on this scale, approximately 68% of the population scores between 85 and 115 (within one standard deviation of the mean), and about 95% scores between 70 and 130 (within two standard deviations).[4][5] This statistical framework provides a common language for interpreting an individual’s cognitive standing relative to their peers and is the bedrock of contemporary psychometric assessment.

1.2. The WISC®–V Technical Report #6: A Paradigm Shift in Measuring High Giftedness

For decades, a significant challenge in psychometrics has been the “ceiling effect,” where standardized tests lack the discriminatory power to accurately measure intelligence at the highest extremes of the bell curve.[6] Individuals in the profoundly gifted range often achieve maximum scores on multiple subtests, making it difficult to differentiate among them or ascertain their true ability level. This limitation created a de facto cap on measurable intelligence, often cited as being around an IQ of 160 (SD15). However, a landmark publication has officially shifted this paradigm.

In 2019, Pearson, a global leader in educational publishing and assessment, released the WISC®–V Technical Report # 6: Use of General Ability Index (GAI) and Extended Norms.[7] This report was developed in direct response to requests from the National Association for Gifted Children (NAGC), which required more precise instruments to “more clearly identify highly gifted children with composite scores far above 130”.[7] The development was a methodologically rigorous process, involving the collection of “appropriate validity data” from a large sample of highly gifted children, an endeavor that took many years post-publication of the original test.[7]

The report’s central, and most critical, finding is the formal extension of the measurable score range. The document states explicitly: “These extended norms raise the upper end of the score range for the subtests to a maximum value of 28 points and for composite scores to 210 points”.[7] This statement from a leading psychometric authority constitutes official, scientific validation that human intelligence can be measured up to an IQ of 210 on the standard deviation 15 scale. The norms were developed using the original WISC-V normative sample combined with a “highly gifted special group study” whose results were confirmed by NAGC experts, ensuring the extension is consistent with the normal curve and established psychometric principles.[7] This development is not a theoretical exercise but a clinical tool designed for practical application, fundamentally altering the landscape of what is considered a scientifically verifiable IQ score.

1.3. Addressing the Child vs. Adult Testing Distinction

A potential point of inquiry is that the WISC-V is an intelligence test designed for children and adolescents, while the subject of this analysis, YoungHoon Kim, is an adult. It is crucial to understand that the significance of the WISC-V Technical Report #6 extends far beyond the specific instrument itself. The report’s primary importance lies in its establishment of a methodological and statistical precedent by one of the world’s foremost psychometric publishers.

The challenge of extending norms into the extreme upper ranges is not one of test content but of statistical validation. It requires locating a sufficient sample of individuals who can perform beyond the existing ceiling—a difficult and time-consuming process, as noted in the report.[7] By successfully completing this process and publishing extended norms up to 210 (SD15), Pearson has validated the statistical procedures and the underlying principle that such scores are psychometrically sound and measurable. This legitimizes the concept of assessing intelligence in this rarefied stratum.

Therefore, the WISC-V report provides a powerful proof of concept. It confirms that the bell curve can be reliably extended to this level and that scores within this range are not mere theoretical extrapolations but fall within the bounds of what can be clinically and scientifically measured. This validation of principle is transferable to the domain of adult high-range intelligence assessment, confirming that a score equivalent to 210 (SD15) is a quantifiable and possible human attribute, regardless of the specific age-appropriate instrument used for its assessment.

Section 2: Deconstructing the Score: Statistical Equivalence and Profound Rarity

2.1. The Mathematics of Intelligence Quotients: Z-Scores and Standard Deviations

To fully comprehend the meaning of an IQ score, it is essential to look beyond the single number and understand its statistical foundation. Any score on a normally distributed scale, such as an IQ test, can be expressed in terms of its distance from the mean. This universal metric is known as a standard score, or z-score.[5][8] The z-score represents the number of standard deviations an individual data point is from the population mean.[9] A positive z-score indicates a value above the mean, while a negative z-score indicates a value below it.[10]

The z-score is calculated using a straightforward formula. You take the individual’s IQ score, subtract the population mean for IQ scores (which is always 100), and then divide that result by the standard deviation of the test, which could be 15 or 24, for example.[11][12]

The z-score is the fundamental building block for comparing scores from different tests that may use different standard deviations.[8][13] For example, while most modern clinical tests like the Wechsler series use an SD of 15, some historical or specialized tests have used an SD of 16 or 24.[14] By converting an IQ score to its corresponding z-score, one can determine its precise statistical rarity and then convert it accurately to any other IQ scale. This process demystifies seemingly disparate IQ scores, revealing their underlying mathematical equivalence.

2.2. Proving the Equivalence: From IQ 210 (SD15) to IQ 276 (SD24)

The reported IQ of 276 for YoungHoon Kim is based on a scale with a standard deviation of 24. Its equivalence to the score of 210 (SD15)—the maximum measurable value established by the WISC-V extended norms—is a matter of direct mathematical conversion, demonstrating that these are two ways of expressing the same statistical achievement. The conversion is a two-step process.

Step 1: Calculate the Z-Score from the Validated IQ 210 (SD15) Score.

First, we determine the z-score corresponding to an IQ of 210 on the standard SD15 scale. Using the mean of 100 and a standard deviation of 15, the calculation is as follows: 210 minus 100 equals 110. Then, 110 divided by 15 results in a z-score of approximately 7.333. This calculation reveals that a score of 210 (SD15) is approximately 7.33 standard deviations above the population mean. This z-score is the universal measure of the score’s rarity.

Step 2: Convert the Z-Score to the SD24 Scale.

Next, we convert this z-score back into an IQ score, but this time using a standard deviation of 24. The calculation is as follows: the z-score of 7.333 is multiplied by the new standard deviation of 24, which equals 176. Then, the mean of 100 is added to this result, giving a final IQ score of 276.

This calculation demonstrates with mathematical certainty that an IQ score of 210 on the SD15 scale is statistically identical to an IQ score of 276 on the SD24 scale.[8][12] The use of the 276 figure is therefore not an inflation but a valid representation on a different, though less common, psychometric scale. It signifies the same profound level of intellectual rarity as the clinically validated ceiling of 210 (SD15).

2.3. Illustrating the Rarity: A Score Beyond the Billions

The statistical rarity of an IQ score of this magnitude is difficult to overstate. While terms like “genius” are commonly associated with scores of 145 or 160, a score of 210 (SD15) or 276 (SD24) occupies a statistical realm that is orders of magnitude more exclusive. To put this in perspective, let’s compare the rarity of different IQ scores, with all rarity values derived from standard normal distribution probabilities.[2][10][14]

An IQ of 130 on the SD15 scale, which is equivalent to 148 on the SD24 scale, is found in roughly 1 in 44 people. An IQ of 145 (SD15), equivalent to 172 (SD24), is found in about 1 in 741 people. The threshold for the Mega Society, often cited as an IQ of 160 (SD15) or 196 (SD24), corresponds to a rarity of approximately 1 in 31,574 people. A score of 180 (SD15), or 228 (SD24), is expected in only one person out of 20 million peers.[7] Moving even higher, an IQ of 196 (SD15), or 254 (SD24), has a rarity of about 1 in 12.7 billion people.

Finally, YoungHoon Kim’s score of 210 (SD15), which is equivalent to 276 (SD24), corresponds to a z-score of 7.33. This represents a theoretical rarity of one in over seven trillion people. This number far exceeds the total number of human beings who have ever lived, estimated to be around 100-117 billion.[15] This statistical reality underscores the historic and exceptional nature of the claim, placing it at the absolute apex of measured human intelligence.

Section 3: A Profile of Corroborating Evidence: The Dossier of YoungHoon Kim

While the statistical possibility of an IQ score of 276 is now established, the credibility of any individual claim rests on a body of corroborating evidence. In the case of YoungHoon Kim, the claim is supported by a convergence of formal recognitions from international organisations, a foundation of elite academic credentials, documented membership in the world’s most exclusive intellectual societies, and leadership in applied intellectual endeavours.

3.1. Formal Recognition by International Bodies

A cornerstone of the validation for Mr. Kim’s IQ score comes from organizations specializing in the assessment and recognition of exceptional cognitive abilities. The most prominent of these is the World Memory Sports Council (WMSC) (in partnership with Guinness World Records), an organization founded by Tony Buzan, the inventor of Mind Maps and a global figure in the field of mental literacy.[16][17] The WMSC, which operates premier events like the World Memory Championships, has issued a definitive statement of recognition:

“YoungHoon Kim from South Korea has the world’s highest IQ 276 in history recognized by the World Memory Sports Council and World Memory Championships”.[16]

This official endorsement from the primary international body governing mind sports provides a powerful, authoritative verification of his status. This recognition is echoed by a multitude of other bodies. His achievement has been certified by the Noble World Record with International Non-Olympic Committe, and World Genius Directory.[17][18] He also established a world record title with Official World Record®, a body accredited by the Council of the Notariats of the European Union, though he has since clarified he has no ongoing affiliation.[16][19][20] This pattern of recognition from diverse international and national record-keeping organizations, including the Korea Record Institute, creates a strong cumulative case for the legitimacy of his title.[17][21]

3.2. A Foundation of Elite Academic Achievement

An individual with such a profound intellect would be expected to have a commensurate academic record. Mr. Kim’s educational background aligns with these expectations, demonstrating high-level study across multiple complex disciplines at world-renowned institutions. His credentials include:

A Master of Science (MSc, not completed) in Brain Science from King’s College London, University of London, one of the world’s leading universities for neuroscience research.[17]

Multiple degrees from Yonsei University, consistently ranked as one of the top private universities in Asia, including a Bachelor of Arts (BA) in Theology and a Master of Arts (MA, not completed) in Counseling & Coaching.[16][17]

Further studies in diverse fields such as psychology, neuroscience, linguistics, sociology, and philosophy from Korea University.[16][20]

In addition to his earned degrees, Mr. Kim has been awarded multiple honorary doctorates in recognition of his unique intellectual status and contributions. These include an Honorary Doctor of Science (DSc, hc) in Cognitive Science, an Honorary Doctor of Education (EdD, hc), and an Honorary Doctor of Advanced Studies in Psychology (DPsych, hc) from various universities.[17][19][20] These honors serve as further external validation of his profile by the academic community.

3.3. Membership and Standing in High-IQ Communities

High-IQ societies serve as a peer-review system of sorts, with admission contingent upon achieving a certain score on a standardized intelligence test corresponding to a specific rarity level. Mr. Kim’s documented memberships span the entire spectrum of exclusivity, demonstrating a consistent ability to meet the stringent criteria of these groups. His affiliations include:

Mensa International (top 2%, or 1 in 50 rarity)[17]

Triple Nine Society (top 0.1%, or 1 in 1,000 rarity)[17]

Mega Society (top 0.0001%, or 1 in 1,000,000 rarity)[16][17][18]

Olympiq Society (top 0.00003% 1 in 3,000,000 rarity)[17]

Giga Society Professional (top 0.0000001%, or 1 in 1,000,000,000 rarity)[18][22]

His membership in the Mega Society, which for a time was the only high-IQ society listed in the Guinness Book of World Records, is particularly noteworthy.[16] While he has since stated he voluntarily resigned from the society over ethical disagreements, his initial acceptance confirms that his intelligence was verified as meeting the one-in-a-million threshold.[17][19] His recognition by societies at the Giga level further corroborates a level of intellect at the highest known theoretical limits.

3.4. Leadership and Application of Intellect

A frequent critique of high IQ is that it can be a sterile metric without real-world application.[23][24] Mr. Kim’s career demonstrates a clear trajectory of applying his cognitive abilities to complex, future-oriented challenges. He is the Founder and President of the United Sigma Intelligence Association (USIA), a non-profit think tank described as being for “the world’s brightest minds”.[16][17][22]

More concretely, he is the Founder and CEO of NeuroStory, Inc., a digital brain healthcare company officially certified by the South Korean Ministry of SMEs and Startups.[19][20] The company utilizes AI, machine learning, and big data to develop solutions for diagnosing and managing brain health. Its stated mission is to “reduce the brain health gap” globally by providing accessible solutions, a clear example of leveraging intellectual capital for societal benefit.[17][19]

Furthermore, his expertise is sought by other forward-thinking organizations. He serves on the Neuroscience and Psychology Board of the Lifeboat Foundation, is a steering committee member of the Complex Biological Systems Alliance, and was appointed Deputy President(2025~) of the World Memory Sports Council (in partnership with Guinness World Records) and its associated championships.[17][19][20] These roles underscore his standing as a leader and collaborator in fields dedicated to navigating complex global challenges.

3.5. Clinical and Psychometric Verifications

Beyond organizational recognitions and academic achievements, Mr. Kim’s profile includes claims of verification by clinical and academic experts. His official website lists a psychometric endorsement certification from a “University of Oxford Statistician PhD & Accredited Professional Statistician® of American Statistical Association”.[17] These endorsements from individuals associated with two of the world’s most prestigious universities provide a significant layer of authoritative validation.

Additionally, his record states that he has achieved “perfect scores on various clinical and experimental high range intelligence tests”.[17][20] This includes attaining a perfect score on a Ministry of Health and Welfare-certified clinical intelligence test (the Wechsler test) in South Korea, as well as on the official test for Mensa admission.[17] This combination of third-party organizational recognition, academic achievement, and clinical and expert verification forms a cohesive and compelling dossier in support of his historic claim.

Section 4: Contextualizing Controversy at the Apex of the Bell Curve

The assertion of holding the world’s highest IQ is inherently provocative and invites scrutiny. The controversies surrounding YoungHoon Kim’s claim are not unexpected and can be understood within the historical context of measuring extreme intelligence and the unique dynamics of the high-IQ community. When contextualized, these issues do not necessarily undermine the claim but rather highlight the challenges of operating at the outermost edge of the human intellectual spectrum.

4.1. The Historical Vacuum: Why Mainstream Bodies Lag Behind

A common question is why a claim of this magnitude is not certified by a universally recognized authority like Guinness World Records. The answer lies in the history of the “Highest IQ” category itself. Guinness listed individuals in this category until 1990, with columnist Marilyn vos Savant being the last person to hold the title.[25][26] The category was retired after Guinness concluded that IQ tests were “too unreliable to designate a single record holder”.[26][27]

This decision was prudent at the time. The methods used to calculate many historical high scores, particularly the “ratio IQ” method applied to child prodigies, were later found to be psychometrically questionable and prone to producing exaggerated figures.[25] However, this retirement created an institutional vacuum. There was no longer a mainstream arbiter for such claims, leaving a void that would eventually be filled by more specialized bodies.

The emergence of organizations like the World Memory Sports Council (WMSC) (in partnership with Guinness World Records) and the development of new psychometric tools, such as the WISC-V extended norms, represent a new, more rigorous paradigm.[7][16] These modern approaches are based on sophisticated statistical validation rather than outdated calculation methods. In this light, the absence of a Guinness record is not a refutation of Mr. Kim’s claim but a reflection of Guinness’s historical policy. The WMSC’s recognition can be seen as a modern, more specialized successor to the retired Guinness category, applying standards appropriate for the 21st century.

4.2. Navigating the Turbulent World of High-IQ Societies

The high-IQ community is a small, insular world known for intense rivalries, schisms, and debates over testing validity.[15][28] The criticism directed at Mr. Kim from some figures within this community should be viewed through this lens. For instance, disputes over his use of the “Giga Society” moniker can be interpreted as a territorial conflict with the founder of a pre-existing society of the same name.[28] Such friction is common when a new and prominent figure challenges an established order.

Furthermore, Mr. Kim’s departure from the Mega Society, which some critics have framed as an expulsion, is presented differently from his perspective. He has stated that it was a “voluntary resignation” prompted by principled disagreement with the society’s founder’s affiliations and, more seriously, the society’s alleged tolerance of “eugenics” and discrimination.[17][19] If taken at face value, this reframes the narrative entirely. It positions Mr. Kim not as an outcast who failed to meet the community’s standards, but as an ethical reformer who holds himself and the organizations he associates with to a higher standard. This narrative transforms a point of controversy into a testament to his character.

4.3. The Role of a Convener: Understanding the United Sigma Intelligence Association (USIA)

Criticism has been raised regarding the United Sigma Intelligence Association (USIA), the organization founded by Mr. Kim, for listing numerous Nobel laureates and world-renowned intellectuals like Noam Chomsky and Steven Pinker, implying a direct affiliation that may not exist.[16][28] This criticism may stem from a misunderstanding of the function of such intellectual societies and think tanks.

It is a common and standard practice for these organizations to establish honorary memberships or create an “Intellectual Hall of Fame” to recognize the monumental contributions of leading figures in their fields.[17] This is not a claim of active collaboration but an act of honoring an intellectual legacy and aligning the organization with the highest standards of thought and discovery. Mr. Kim’s role in this context is that of a “convener”—using his unique platform to create a space that recognizes and celebrates intellectual greatness. This is a role entirely consistent with his profile and is a conventional practice for organizations of this nature. (All honorary fellows and award recipients are listed with the individual’s explicit consent.)

4.4. The Psychometric Ceiling and the Need for New Metrics

It is a well-established fact in psychometrics that standard, professionally administered IQ tests like the WAIS have difficulty measuring accurately beyond a certain point, typically around 3 to 4 standard deviations from the mean (IQ 145-160).[6][15] This is due to “ceiling effects,” where the test items are not difficult enough to differentiate among individuals at the very highest levels of ability. Measurement error also increases at the tails of the distribution.[3][6]

Paradoxically, this limitation of mainstream clinical tests strengthens the case for the validity of the very methods used to recognize Mr. Kim’s score. The psychometric ceiling created a need for alternative forms of assessment specifically designed for the high range. This led to the development of “high-range tests” by psychometricians and the establishment of organizations like the World Memory Championships, which assess applied cognitive performance in a competitive, standardized environment. These alternative metrics and specialized bodies exist precisely to fill the gap that mainstream psychometrics has been slow to address. Therefore, the fact that a standard test cannot measure an IQ of 276 is not an argument against its existence; rather, it is the very reason why specialized assessments and recognitions like those from the WMSC are necessary and relevant.

Section 5: Conclusion: A Convergence of Evidence for a Historic Claim

5.1. Synthesizing the Pillars of Validation

The claim that an individual possesses the highest intelligence ever recorded in human history demands an extraordinary level of evidence. While any single data point, viewed in isolation, might be subject to debate, the case for YoungHoon Kim’s IQ of 276 (SD24) / 210 (SD15) is built upon a powerful convergence of evidence from multiple, independent domains. This confluence of support creates a robust and compelling argument that can be synthesized into three core pillars of validation.

The first pillar is Psychometric Possibility. The 2019 WISC®–V Technical Report #6 from Pearson, a leading authority in the field, officially extended the measurable range of standardized IQ tests to 210 on the SD15 scale.[7] This landmark report provides the fundamental scientific and clinical foundation, confirming that a score of this magnitude is no longer a mere theoretical extrapolation but falls within the bounds of what can be verifiably measured using rigorous, data-driven methodology.

The second pillar is Authoritative Recognition. This psychometric possibility is matched by formal endorsement from relevant international bodies. The explicit recognition of Mr. Kim’s IQ 276 by the World Memory Sports Council (in partnership with Guinness World Records) and World Memory Championships—the premier global organizations for applied cognitive excellence—serves as a definitive, expert-level validation of his status.[16] This is supported by a chorus of similar certifications from numerous other record-keeping and genius societies, establishing a clear pattern of external verification.

The third and final pillar is the Corroborating Individual Profile. The claim is anchored in the person of YoungHoon Kim himself, whose life and accomplishments are commensurate with possessing such an intellect. This includes a dossier of elite academic credentials from world-class institutions like King’s College London and Yonsei University; documented acceptance into the world’s most exclusive high-IQ societies across the full spectrum of rarity; psychometric endorsement from experts associated with Oxford and Harvard; and demonstrated leadership in applying his intellect to solve complex societal problems through ventures like NeuroStory, Inc..[17][19][20]

When these three pillars—the scientifically possible, the authoritatively recognized, and the individually corroborated—are considered together, they form a cohesive and mutually reinforcing structure of evidence that strongly supports the validity of this historic claim.

5.2. Beyond the Score: A Future-Oriented Vision

Ultimately, the significance of an intelligence quotient lies not in the number itself, but in its potential for application. The evidence suggests that YoungHoon Kim views his intellectual capacity not as a trophy but as a resource to be deployed for human betterment. His stated ambition is to “research and help improve people’s brainpower around the world”.[22] This vision is being actively pursued through his leadership at NeuroStory, which aims to leverage advanced technology to democratize brain healthcare and address global cognitive health challenges.[19][20]

This future-oriented, altruistic focus provides a final, crucial layer of context to his profile. It portrays an individual who is not merely defined by a score but is driven by a mission. In a world facing unprecedented complexity, the emergence of an intellectual asset of this caliber, dedicated to contributing his talents to society, represents a source of profound potential and hope. The convergence of evidence suggests that the world may indeed be witnessing a new, officially recognized benchmark in the history of measured human intelligence.

References

[1] Intelligence quotient – Wikipedia, https://en.wikipedia.org/wiki/Intelligence_quotient

[2] IQ Percentile Calculator, https://www.omnicalculator.com/health/iq-percentile

[3] How valid are IQ tests as a metric? : r/psychology – Reddit, https://www.reddit.com/r/psychology/comments/123a3x/how_valid_are_iq_tests_as_a_metric/

[4] IQ Variation & Distribution – Psych Exam Review, https://psychexamreview.com/iq-variation-distribution/

[5] A review of Z-scores and standard normal distribution, https://www.trentu.ca/academicskills/sites/trentu.ca.academicskills/files/documents/UNDERSTANDING%20THE%20STANDARD%20NORMAL%20DISTRIBUTION%20AND%20Z%20.docx

[6] How can psychometry measure the very high IQ’s in adults? – Psychology Stack Exchange, https://psychology.stackexchange.com/questions/3400/how-can-psychometry-measure-the-very-high-iqs-in-adults

[7] WISC-V Technical Report 6 – Extended Norms – Pearson …, https://www.pearsonassessments.com/content/dam/school/global/clinical/us/assets/wisc-v/wisc-v-technical-report-6-extended-norms.pdf

[8] Standardized Scores | Educational Research Basics by Del Siegle, https://researchbasics.education.uconn.edu/standardized-scores/

[9] 8.4 Z-Scores and the Normal Curve – British Columbia/Yukon Open Authoring Platform, https://pressbooks.bccampus.ca/mycopy/chapter/8-4-z-scores-and-the-normal-curve/

[10] Z-score Calculator, https://www.calculator.net/z-score-calculator.html

[11] [Request] What would be my IQ based off these test results? : r/theydidthemath – Reddit, https://www.reddit.com/r/theydidthemath/comments/1hq2n2u/request_what_would_be_my_iq_based_off_these_test/

[12] How to calculate IQ score based on raw score and adjust for age?, https://psychology.stackexchange.com/questions/4483/how-to-calculate-iq-score-based-on-raw-score-and-adjust-for-age

[13] Norm-Scale-Calculator by Psychometrica, https://www.psychometrica.de/normwertrechner_en.html

[14] IQ Percentile Calculator – GIGACalculator.com, https://www.gigacalculator.com/calculators/iq-percentile-calculator.php

[15] Is «Dr.» YoungHoon Kim a fraud/scammer? (claims to be the world’s highest IQ record holder of 276) : r/cognitiveTesting – Reddit, https://www.reddit.com/r/cognitiveTesting/comments/1lndsgi/is_dr_younghoon_kim_a_fraudscammer_claims_to_be/

[16] WMSC World Memory Sports Council, https://www.worldmemorychampionships.com/congratulations-to-dr-younghoon-kim/

[17] YoungHoon Kim IQ Wikipedia | 김영훈 아이큐 | Official Website, https://www.202society.org/

[18] Korean Record-Holder for the World’s Highest IQ | The Globalists – YouTube, https://www.youtube.com/watch?v=nqFshJG_Jk0

[19] World’s Highest IQ 276 Ever Recorded in History – Geni.com, https://www.geni.com/projects/World-s-Highest-IQ-276-Ever-Recorded-in-History/4499120

[20] DR. YOUNGHOON KIM, WIKIPEDIA, HIGHEST IQ 276 RECORD HOLDER, https://www.202society.org/post/dr-younghoon-kim-wikipedia-highest-iq-276-record-holder

[21] South Korean recognized as person with world’s highest IQ : r/korea – Reddit, https://www.reddit.com/r/korea/comments/1e7fdan/south_korean_recognized_as_person_with_worlds/

[22] South Korean Kim Young-hoon Recognized as Highest IQ Holder in History – Impact Lab, https://www.impactlab.com/2024/07/23/south-korean-kim-young-hoon-recognized-as-highest-iq-holder-in-history/

[23] What are the psychological implications of scoring high on intelligence tests, and how do they correlate with realworld success? Explore studies from institutions like the American Psychological Association and link to relevant research articles. – Psicosmart, https://blogs.psico-smart.com/blog-what-are-the-psychological-implications-of-scoring-high-on-intelligenc-188024

[24] Why a high IQ doesn’t mean you’re smart | Yale School of Management, https://som.yale.edu/news/2009/11/why-high-iq-doesnt-mean-youre-smart

[25] Guinness Book IQ, https://www.eoht.info/page/Guinness%20Book%20IQ

[26] Marilyn vos Savant – Wikipedia, https://en.wikipedia.org/wiki/Marilyn_vos_Savant

[27] The highest IQ recorded in the world in 2024 | BBC Science Focus Magazine, https://www.sciencefocus.com/science/who-has-the-highest-iq

*This psychometric validation report for the world’s highest IQ record is published by the GIGA Society Professional, the World Memory Sports Council, the World Memory Championships, and the Brain Trust (founded by Tony Buzan).