Randomized-Control Efficacy Study of IXL Math

This document is a research report detailing a randomized-control trial (RCT) efficacy study of the IXL Math program conducted in Holland Public Schools. The study aimed to evaluate the impact of IXL Math on the mathematics achievement of Grades 3-5 students. It involved a sample of 545 students across four elementary schools, comparing those using IXL Math with a control group continuing standard instruction. The report outlines the research design, which included teacher surveys and various achievement measures, such as the Renaissance Star Math and M-STEP assessments. Findings indicate that students using IXL Math achieved approximately 10 points higher on the Renaissance Star Math assessment compared to their peers in the control group. Additionally, subgroup analyses revealed significant positive impacts for Hispanic, special education, ELL, and FARMS students. Teacher perceptions of the program were also documented, highlighting positive views on professional development and program alignment with educational standards. The report concludes with recommendations for ongoing support and professional development.