Effects of Interim Assessments Across the Achievement Distribution: Evidence From an Experiment

This is a follow-on study from Konstantopoulos et al., 2016. Results generally show that lower-achievers in grades 3-8 seem to benefit more from interim assessments (Acuity) than higher-achieving students. The magnitude of the effects were larger in math than reading; however, no effects were found for grade K–2, which used mCLASS.