Okay. That's a bit of a relief! After seeing getting the WISC done 6 months ago, I just assumed he would score in the gifted ranges on the NNAT. But, it is done on the computer in a group setting at school, and I could easily see DS being much more impulsive with answering in that setting than he would be one-on-one with a psychologist, especially if he had to explain his thought process. Or, he just might have lost interest about halfway through the NNAT. His math achievement seems to correlate pretty well with his WISC scores, so I'll try not to overthink the NNAT.
Looking back, my DD's NNAT score was significantly lower than her WISC FRI/matrix reasoning scores as well, but she does have ADHD. I guess I'll have to be somewhat mindful of that possibility for DS, too.
