who has the highest IQ level in the world?

A lot of people think that East Asians are born with high IQ levels and have been shown to reach the top 10% of global average scores by adulthood. Another common theory is that US whites show higher average IQs because they gain more education than other populations.
According to the World Genius Directory, Evangelos Katsioulis, MD, MSc, MA, PhD, seems to have the highest tested IQ in the world, with a score of 198. IQ, or intelligence quotient, is a measure of someone's cognitive ability. Rankings for IQ have been published by testing agencies such as Mensa International and the CIA World Factbook. Generally speaking, scores in the top 10% are considered "superior" or "gifted.".