Welcome! I too find this site to be tremendously helpful! My DD6 took the RIAS at 4 and had very similar results to your son (25 points difference between VIX and NIX). I was a little blown away to see such a high NIX and eventually went on to have a SB5 administered for more information. She went on to have a fairly even profile on the SB5 and the RIAS CIX has shown to be fairly accurate with FSIQ. I know all our kiddos are different, but DD is now a DYS and is showing fairly even academic development. I found the WJ and KTEA results to be helpful in understanding my DD. FWIW I still am struggling with wrapping my head around the struggles that may lie ahead.
