So I looked up the Aspire technical manual, and the scaling on the 6th grade test does allow for comparisons to the 50th %ile or better up through 10th grade, which is the highest Aspire grade level. If he tops that out, then you'd be looking at the actual college prep ACT as the appropriate above-grade-level test. Which, I think, is a bridge you cross only if you get to it. If his writing is middle school level, on reflection, I think it may make more sense to split the difference, and have him take a late middle school test, like the eighth grade form, so that both his strengths and weaknesses are somewhere closer to the middle of the obtainable ranges for scaled scores. If one of the sections blows the roof off, then you try another grade level in that subject. I'd say that if additional testing is needed, that the first round will give the school some idea of how far up to go, and then you go back on another day for a second round in the specified areas.
