I did read that. Interesting, but taken with a grain of salt.
I think the interesting thing in regards to that article and your situation of changing to the cogat and/or nnat is the possibility that a significantly smaller portion of kids are going to be identified as gifted. I believe aeh has also said that the ravens norms are outdated and would now over identify giftedness.
Also note that there are new versions/norms now for the NNAT (NNAT2) and the Cogat (form 7 - I think that article was based on form 6). I have no idea if Ravens has been updated. Changing tests no doubt changes some of the kids who will be identified/not identified. It's weird to think about, but I guess it's unavoidable to a certain extent.
