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Download full textTennessee Department of Education, 2025
In the 2024 legislative session, the Tennessee General Assembly passed Chapter 551 of the Public Acts of 2024 (PC 551), the Mathematics Supports Act (the Act), codified at Tenn. Code Ann. §§ 49-1-233 -- 49-1-234. The Act indicates the General Assembly's commitment to strong mathematics instruction in Tennessee to prepare students for postsecondary…
Descriptors: Mathematics Education, Mathematics Instruction, Faculty Development, School Districts
Peer reviewedHedberg, E. C.; Hedges, Larry – Society for Research on Educational Effectiveness, 2017
The purpose of this paper is to showcase new research that seeks to provide guidance on the heterogeneity of treatment effects by utilizing the variance of demographic differences in state assessments. This study is focused on a simple randomized block design where students are nested within schools, and within each school students are randomized…
Descriptors: Databases, Randomized Controlled Trials, Educational Research, Research Design
Somers, Marie-Andrée; Zhu, Pei; Jacob, Robin; Bloom, Howard – MDRC, 2013
In this paper, we examine the validity and precision of two nonexperimental study designs (NXDs) that can be used in educational evaluation: the comparative interrupted time series (CITS) design and the difference-in-difference (DD) design. In a CITS design, program impacts are evaluated by looking at whether the treatment group deviates from its…
Descriptors: Research Design, Educational Assessment, Time, Intervals
