It's really academic but in the context of the school saying he can't handle more advanced language arts work, his extended VCI makes this claim even more starkly absurd. It looks to me like his Vocabulary scaled score would go up from 19 to 20 no matter his age but his Comprehension subtest would go up to 21 or 22 depending on exactly how old he was when he took the test. There are three different tables for 11 year olds according to years and months. If he is below 11 years 8 months then he is a 22, otherwise a 21.
This makes his extended VCI around 160, way off in the tail of the bell curve. It raises his FSIQ too. These numbers are really only useful if you want to change the level of his LA work though. Otherwise they are just a footnote.
