An IQ of 180 is exceptionally rare; estimated to occur in approximately one in every two million people.
While the concept of "genius" historically started being considered around an IQ of 140 (approximately one in 250 people), some researchers, particularly in the mid-20th century, proposed a higher threshold for defining genius, suggesting an IQ exceeding 180. This dramatically reduces the prevalence, putting it in the realm of extreme rarity.
It's important to consider that IQ scores, especially at the extreme ends of the distribution, become less statistically reliable. Factors such as the specific IQ test used, the test-taker's familiarity with the test format, and even environmental conditions during testing can influence the result.
Therefore, while a 180 IQ score signifies exceptional cognitive abilities, interpreting it should be done with caution, understanding its limitations and acknowledging the broad spectrum of human intelligence and talent.
