On average, my students increase their ACT scores by 6.5 composite points and their SAT scores by 250 points (on the new 1600 version). I've had students increase from a 19 to a 32 on the ACT and have had multiple students achieve perfect scores on both exams. Those increased scores opened the door to colleges that were previously beyond their reach. The average cost of a year of college is well past $50,000....so for about the cost of half a quarter of university tuition, you can increase the chances of your child getting a better score and going to a better school.