The percentiles are on the printout the school sent us. It looks like it is from Pearson, who I think makes the test. They were not hand-scored.
It says the percentiles are compared to kids his age who took the test nationally. So for Cricket, you can have 99.9% etc on the OLSAT. My other son got on the Ravens test at 99.1%. You can have a decimal point on some of these test scores.
For the WISC, I was quoting his WISC scores from 3 years ago, from memory. I'd have to look at his subtests to be precise. His GAI was 144 and he was accepted into MENSA on that.
I do think the OLSAT is not an especially useful screen for the gifted program, but that is what our district uses. The verbal is almost only analogies, which many children may not be familiar with.
No, we don't have any accomodations (well, except that he is hearing impaired, and he has an IEP for that). He qualified for CTY via the SCAT test, but we haven't done anything for that.
Supposedly our gifted program is a grade level ahead, but it starts in 4th grade, next year.