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Effects of Interim Assessments on Student Achievement: Evidence From a Large-Scale Experiment

The study uses data from a 2010-2011 school-level randomized experiment of 70 Indiana public schools to examine the impact of two interim assessment programs, mCLASS in Grades K-2 and Acuity in Grades 3-8, on students’ mathematics and reading achievement. Results indicate no overall treatment effect for Grades 3-8 but a statistically significant negative effect in Grades K-2 (i.e., kindergarten and second grade), indicating that students in control schools perform higher than students in treatment schools.

Grade Level

Elementary School (K-5) Middle School (6-8)