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.