My DD, age 7, grade accelerated to 3rd grade, just took the CoGAT for the district gifted program She scored 127 Verbal, 110 Quantitative and they did not administer NonVerbal.
I had a WISC IV done privately, because we were really feeling crazy about the low scores on CoGAT. She scored FSIQ 149. As explained to me, that puts her at an artficial ceiling (her true IQ is higher) because she hit the ceiling on 4 of 6 reasoning subtests.
With her as an example, and all the similar stories I have read online, I really wonder about the validity of the CoGAT. She told me that she simply did not finish 2 of 3 sections quantitative and 1 of 3 in the verbal. Just not enough time. If you don't answer all of the questions, even if they are all correct, you cannot score in the gifted range on CoGAT.
The Psychologist explained to me that although her processing speed is in the gifted range - 136 - very bright children with high level reasoning abilities, when faced with a new test will not rush through. They take their time, understand each question and make careful answers. That is not allowed on the CoGat. They get 30 seconds for each quantitative question.
I hope this is useful.
