Ick. Um, yes, the WISC can be used to assess students with disabilities. And also gifted students. That is just a dumb statement that he made. I will say that my own dd12 had a significant difference b/t WISC and CogAt. According to her achievement the WISC is the accurate one, and I have seen anecotes of this over and over. Thankfully my school district does accept outside testing. I would get the book From Emotions to Advocacy and start politely putting further requests in writing. There must be a process to appeal.