Which SCAT score - V or M? And I'm assuming this is the CTY SCAT.
Unfortunately, I doubt it can be used on it's own. It's a proprietary test, given only to a specific subset of the population by one specific organization. I know CTY provides percentile ratings against higher grade levels, but I've never seen any evidence that this is regularly normed/evaluated/updated since JH bought the test many years ago.
Without your child's grade level it's difficult to comment, and the scaled score, somewhere in the 400-500+ range, is more commonly used for SCAT.