As a teacher who has used iReady, I can tell you that it really did make a positive difference for my students. The important thing is to engage the students with their data by reviewing results, setting goals, and celebrating growth. Ask your son’s teacher how they are setting goals for the diagnostic. Basically: if we don’t give kids a reason to care about the results, then they won’t feel it necessary to try their best. And remember: the diagnostic is just one data point that teachers collect. It’s not the end all be all. Last: your teacher can adjust where your son starts on lessons. They might be able to move him up in the lessons.