I know the RIAS is not a widely recognized test. He also had a full day of testing at a University, however I have not received those results yet.
I appreciate any insight!
I reccomend checking out the Hoagies website. They have a lot of great info and I know they have some IQ break-downs. I personally know nothing about the RIAS accept there are 2 different versions and that the ceiling is 160. That would put your child in the very top percentile for that test. I don't know how it compares to other testing though.
It means he is profoundly gifted.