After using a statistical technique to create matched groups of students who used Achieve3000 Math and students who did not use Achieve3000 Math, 438 students in sixth- and eighth-grade Florida classrooms participated in the study. Students in Florida using Achieve3000 Math showed significantly greater improvement in mathematics skills than students in Florida classrooms that did not use Achieve3000 Math. The effect size for sixth graders was .45 and the effect size for eighth graders was .28.
