The Utah STEM Action Center conducted a multiyear evaluation of multiple providers of online instructional technology for mathematics for the K–12 Mathematics Personalized Learning Software Grant Pilot Program, including i-Ready. For school years 2014–2015 through 2018–2019, the Utah STEM Action Center published annual reports regarding the implementation and effectiveness of these technologies. (Note: The study design varied by evaluation school year.) Using multiple methodologies, such as linear and logistic regression, these reports showed that i-Ready was consistently one of the top mathematics solutions among the vendors evaluated. The most recent evaluation with student-level Student Assessment of Growth and Excellence (SAGE) outcomes available from spring 2018 found that the use of i-Ready was associated with increased likelihood of proficiency on the SAGE test, and students who used i-Ready with greater frequency demonstrated higher student-growth percentiles than students who used i-Ready with lower frequency.

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