agree with @TooOld4School , with 45 mins per day of study and a full test on the weekend over the course of two months, our kids moved their test scores +100 to 200 resulting in 10s of thousands of merit. My D devoured the meltser act english book cover-to-cover to move her act writing score from 28 to 36. A side benefit is that she has a much better understanding of the mechanics of writing.