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.
This was our experience... however... with a high SCAT score, you have data to support a request to test using district or classroom grade-level achievement tests, which is what worked best in our elementary schools to advocate for math acceleration. These were tests that showed mastery of grade level curriculum. It also would be helpful to try to find out what your school or school district policy are re acceleration.
Best wishes,
polarbear
