REALITY CHECK: A score in the 58th percentile means she scored BETTER than 58 percent of the kids taking the SSAT, the vast majority of whom already attend private school! She is already scoring better than most, even though they’ve had access to more resources and test prep.
BTW - There are lots of amazing kids who just don’t test well, too. That’s why more and more colleges-- including sought-after ones like Bowdoin, Wesleyan, and University of Chicago – are now test optional.