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Li, Wei; Konstantopoulos, Spyros – School Effectiveness and School Improvement, 2017
Policies about reducing class size have been implemented in the US and Europe in the past decades. Only a few studies have discussed the effects of class size at different levels of student achievement, and their findings have been mixed. We employ quantile regression analysis, coupled with instrumental variables, to examine the causal effects of…
Descriptors: Class Size, Achievement Gap, Educational Policy, Achievement Tests
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Konstantopoulos, Spyros; Shen, Ting – Educational Research and Evaluation, 2016
Class size reduction has been viewed as one school mechanism that can improve student achievement. Nonetheless, the literature has reported mixed findings about class size effects. We used 4th- and 8th-grade data from TIMSS 2003 and 2007 to examine the association between class size and mathematics achievement in public schools in Cyprus. We…
Descriptors: Class Size, Mathematics Achievement, Evidence, International Assessment
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Li, Wei; Konstantopoulos, Spyros – Journal of Research on Educational Effectiveness, 2016
Class size reduction policies have been widely implemented around the world in recent years. However, findings about the effects of class size on student achievement have been mixed. This study examines class size effects on fourth-grade mathematics achievement in 14 European countries using data from TIMSS (Trends in International Mathematics and…
Descriptors: Class Size, Grade 4, Mathematics Achievement, Evidence
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Konstantopoulos, Spyros; Miller, Shazia R.; van der Ploeg, Arie; Li, Wei – Journal of Research on Educational Effectiveness, 2016
We use data from a large-scale, school-level randomized experiment conducted in 2010-2011 in public schools in Indiana. Our sample includes more than 30,000 students in 70 schools. We examine the impact of two interim assessment programs (i.e., mCLASS in Grades K-2 and Acuity in Grades 3--8) on mathematics and reading achievement. Two-level models…
Descriptors: Academic Achievement, Hierarchical Linear Modeling, Public Schools, Mathematics Achievement
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Konstantopoulos, Spyros; Chung, Vicki – American Journal of Education, 2009
The findings on the social distribution of the immediate and lasting benefits of small classes have been mixed. We used data from Project STAR and the Lasting Benefits Study to examine the long-term effects of small classes on the achievement gap in mathematics, reading, and science scores (Stanford Achievement Test). The results consistently…
Descriptors: Small Classes, Academic Achievement, Achievement Tests, Achievement Gap
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Konstantopoulos, Spyros; Hedges, Larry V. – Teachers College Record, 2008
Background/Context: Determining the effectiveness of reform strategies is a major part of the current and future educational research agenda. Effects of education reforms will be evaluated largely quantitatively, and an important aspect of this work will be judging how well reform strategies work. The rhetoric of contemporary school reform…
Descriptors: Research Design, Policy Formation, Intervention, Educational Research