Well, my beef with the CogAT is that it weeds out 2e kids who really do need special services. DD has dyslexia, and tanked the CogAT. On WISC-IV she scored VCI=140.
My dd didn't tank the CogAT, but she didn't do well enough on it to qualify for GT and she, too, is 2e. Her WISC VCI was right around the same spot as your dd's and her PRI was close to that the first time she tested as well.
That would be another validity test I'd like to see
-- if the CogAT is actually a good way to id gifted kids who have other disabilities.
