Getting-Testy-15-Ways-Latina-Moms-can-Help-Their-Kids-get-SAT-Ready-MainPhotoThe SAT and ACT are very different from one another, and chances are your child will do better on one because of the differing formats, test lengths, or subjects covered. This page at The Princeton Review can provide a closer look at the differences between tests. The idea is for your child to take both and see on which they perform better.