William James Sidis, an American child prodigy, possessed an exceptionally high IQ, estimated to be between 200 and 300. This places him among the most intelligent individuals ever recorded. Many other individuals have also been reported to have exceptionally high IQ scores. Sources like RD.com list numerous individuals with exceptionally high IQ scores, including YoungHoon Kim with an IQ of 276, and Marnen Laibow-Koser with an IQ of 268. The Giga Society, an organization for people with very high IQs, also highlights individuals with exceptionally high scores. However, it is important to note that the assessment and interpretation of IQ scores can be subject to assessor bias, as highlighted in research studies like "Assessor bias variance in high-stakes assessments." Furthermore, the definition and measurement of intelligence itself remain complex and contested, and IQ scores are only one measure of cognitive abilities. Some individuals may even have intellectual abilities that defy conventional IQ testing.
- Examples of individuals with reported high IQs: William James Sidis, YoungHoon Kim, Marnen Laibow-Koser, Ainan Cawley.
- Factors influencing IQ scores: Assessor bias, limitations of IQ tests, and the complexity of defining and measuring intelligence.
