Thank you guys! All wonderful help. Background to clarify: DS was in classically based private school for Pre-K and Kinder. We are now in public 1st.
The original test given at his last school was using the TONI-4. When I showed the Neuropsych who most recently did the full battery using the WISC-4 he found that to be a strange test to use for a gifted program placement. He was tested b/c the teachers at that school thought him to be gifted. I was going to take those scores to our new school district this year but upon seeing them--um, no! ;-)
When he entered our new district they screen every incoming new student. He was screened. Apparently you have to have 4 high markers to move on to testing. He had 1 or 2 but not 4. He is apparently on some watch list. Now that I know he might have difficulty with processing speed and working memory I'm thinking all these tests are just really difficult for him to show his true ability.
Polarbear--you asked such great questions and had great info...thank you! He was given the Integrated Visual and Auditory Continuous Performance Test (IVA-CPT). Apparently his results were very impaired and his symptoms are "severe." From what I'm reading on his results the coding and symbol search were the processing speed subtests, specifically.
Where I'm confused is that he's well behaved at school and always has been? Thus far none of this has any effect on school.
Thank you guys for your help. While I was excited to see that one really high scaled score for Matrix Reasoning--18--I'm thinking just that one doesn't tell us much. Frustrating!