My guess is that it is something like this -
https://www.pearsonclinical.com/psychology/products/100000180/gifted-rating-scales-grs.html

https://en.wikipedia.org/wiki/Gifted_Rating_Scales

and the whole form is copyrighted.

If you have a student that actually shows what they are capable AND a teacher that knows more than the standard stereotypes about "gifted" then it might work. For PG 2E kids that have shut down etc - they probably aren't going to score very high.

I can't speak to the legality of it. I will say that it is hard to appeal something that is top secret.