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Konstantopoulos, Spyros; Li, Wei; Miller, Shazia R.; van der Ploeg, Arie – Educational and Psychological Measurement, 2016
We use data from a large-scale experiment conducted in Indiana in 2009-2010 to examine the impact of two interim assessment programs (mCLASS and Acuity) across the mathematics and reading achievement distributions. Specifically, we focus on whether the use of interim assessments has a particularly strong effect on improving outcomes for low…
Descriptors: Educational Assessment, Mathematics Achievement, Reading Achievement, Regression (Statistics)
Ye, Meng; Xin, Tao – Educational and Psychological Measurement, 2014
The authors explored the effects of drifting common items on vertical scaling within the higher order framework of item parameter drift (IPD). The results showed that if IPD occurred between a pair of test levels, the scaling performance started to deviate from the ideal state, as indicated by bias of scaling. When there were two items drifting…
Descriptors: Scaling, Test Items, Equated Scores, Achievement Gains
Wang, Shudong; Jiao, Hong – Educational and Psychological Measurement, 2009
In practice, vertical scales have been continually used to measure students' achievement progress across several grade levels and have been considered very challenging psychometric procedures. Recently, such practices have been drawing many criticisms. The major criticisms focus on dimensionality and construct equivalence of the latent trait or…
Descriptors: Reading Comprehension, Elementary Secondary Education, Measures (Individuals), Psychometrics