Hi!
The extended norms can be calculated from the test he already took. Our tester was not aware of those extended norms, so when I saw some high subtest scores (I took a peek before she gave us the full report) I told her about them. I emailed her the link to the REport, and that was enough.
If he does hit the 145 with the extended norms, then you'd have two options for applying to YSP. One would be to get achievement testing, and the other to apply with a portfolio. I am really glad we did achievement testing in addition to the WISC for our DD6 (1st grade). It gave us very good perspective and made us realize she is much further ahead than what we thought she'd be.
I am not sure whether Dottie checks this board regularly or not. You can repost this in the "Identification, Testing...." board. FWIW, our Dd's verbal score went from 140 to 145 with the extended norms. Shy of the magic 145, but her GAI did surpass that mark.
