There are several media reports that Evangelos achieved the highest recorded adult intelligence performance of an IQ 198, sd 15 on standardized tests. (Yahoo! Finance, 2012/10/24)
In 2003, Evangelos became the 6th member of the exclusive GIGA High IQ society with a minimum entrance requirement of an IQ 190, sd 15, which is statistically expected to be achieved only by 1 individual out of 1,000,000,000 of the unselected population.
Evangelos achieved the best performance on two consequent Cerebrals Society International Non Verbal Cognitive Performance contests in 2003 and in 2009.
Evangelos holds membership in more than 100 high IQ societies and organizations.