Yes. The impact of Reading Assistant on fluency growth was evaluated with mainstream students in Grades 2-5. Half of the classrooms in two schools used the software in thirty-minute sessions, once or twice a week over 17 weeks. Across all four grades, fluency gains were significantly greater for students who used the software than those who did not, averaging 43% (E.S.=0.91) greater than normative expectations over grades. Project sponsored by the Carlisle Foundation and NICHD.