If you're going to report the highest number achieved out of FSIQ, GAI, VCI, and PRI (those are the Davidson criteria, I think), then you have a greater chance of one of them being over a certain threshold than the chance that just the GAI will be over a certain threshold. It is also complicated by the fact that not everyone gets a GAI calculation - it is properly only added to a test report if there is a significant discrepancy in subscores, which probably means that the reported GAIs skew high. So there are probably more people entitled to run around saying, "I got 160 on my IQ test"* than you would think just on a straight normal-curve calculation.
* This should not be taken as an endorsement of bragging on IQ scores for yourself or anyone else socially.
Last edited by ElizabethN; 10/08/14 06:40 PM.
