I'm not sure. DD was just tested and just turned 6, my tester didn't do extended norms but I did figure them out from the table and checked here. She did do a GAI though for us, which made a difference since she had low WMI and PSI brought on by perfectionism. I technically don't think the norms overinflanted DD's since she was very far above ceiling on 3 subtests. On 2 she went all the way to the end. Also, her achievement testing actually matches up with the extended norms more that the non- the PRI and math parts especially.
I know that's not a lot of help. I am still trying to figure all this out as well. Good luck with next year. We also have no gifted services and our school told me "sometimes gifted kids just have to be miserable in elementary school" so we are homeschooling. I hope you get some help with the school.
