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We examine the two- and three-year cumulative impact of an interim assessment program (Acuity) used in grades 3-8 on mathematics and reading achievement. We use follow-up data from a large-scale school-level randomized experiment conducted in 2009-2010 in public K-8 schools in Indiana. Two-level models were used to capture the potential nesting of students within schools. The two-year effects were significant and ranged between one-third and one-half standard deviations in mathematics, while in reading the effects were on average nearly one-fifth of a standard deviation. The three-year effects were significant and ranged between one-third and nearly 0.90 standard deviations in mathematics, while in reading the effect was on average greater than one-fifth of a standard deviation.
Spyros Konstantopoulos, Michigan State University
Wei Li, University of Alabama
Shazia R. Miller, NORC at the University of Chicago
Arie J. van der Ploeg, Retired