Cerebrals Society - a society of people scoring above an IQ 144 SD16 on professional, standardized tests of intelligence. A rarity of 1/333 or 2.75 standard deviations above the mean. Six times more selective than Mensa. Cerebrals Society is an international society for people who have a documented IQ score of at least 144 sd16 from standardized, professional tests of intelligence only. This means that membership is open for the top 0.3% of people along the IQ spectrum. For comparison Mensa, the most widely recognized IQ organization accepts people scoring in the top 2% or an IQ of 132 sd16. In turn it means that Cerebrals is about six times more selective than Mensa.