US girl who joined high IQ society Mensa at the age of 2 breaks world record

Isla McNabb from US has broken the world record for being the youngest member of high IQ society Mensa. At the age of two-and-a-half years, Isla scored in the top 1% of the population, qualifying her for Mensa membership. It is a non-profit organisation for individuals who score at the 98th percentile or higher on a standardised IQ test.