It's hard to tell what the norms were for your SCAT, as they could have been 8th grade norms, 7th grade (i.e., adjusted for your age), or 10th or 11/12th grade norms (given CTY's historical approach of out-of-level testing). I would guess the most likely would be 8th or 11/12th grade norms, but I don't think we have any way of knowing at this late date.
The test you took in 8th or 9th grade sounds like it may have been the Raven's Progressive Matrices, if by pictures you mean grids with missing design elements, rather than realistic depictions of everyday objects. It has a standard level and an advanced level. Given your age at the time, the standard set appears more likely, but may well have been easy for you.
"Most intelligent" is not as objective a descriptor as one might hope, of course, but it's not unreasonable for the administrator to have described you in those terms, given that you were one year young for grade. Perhaps no one else was grade-accelerated? You may also have noticed that it is not unusual for families to retain their children on entry to such schools (e.g., if entry year is 7th grade, these students complete 7th grade in their previous, less-selective school, and then enter the selective school as a repeat 7th grader), ostensibly to give them a transition year to acclimate to the pace and intensity of a more rigorous setting without also having to learn a lot of new academic content. So you may well have been two years younger than quite a few of your classmates.
