I would say 3 for None of the above. I don't believe you can use the Explore scores "to compare [your] DS to grade level competence." For example, DS hit 99 percentile compared to 8th graders when he was 9, but accelerating him to 8th grade would have been laughable. He would not have been truly competent. The Explore is just 4 half-hour subject tests given in a multiple choice format. Aside from the obvious writing skills and executive function deficits, there is so much more covered by a decent curriculum in a good school. A high score on the Explore when taken out of level tells you that your child is highly capable.
