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Hedberg, 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
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Tourangeau, Karen; Brick, Mike; Byrne, Lauren; Le, Thanh; Nord, Christine; West, Jerry; Hausken, Elvira Germino – National Center for Education Statistics, 2005
This methodology report provides technical information about the development, design, and conduct of the third grade data collection of the Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K). Detailed information on the development of the instruments, sample design, data collection methods, data preparation and editing,…
Descriptors: Grade 3, Kindergarten, Data Collection, Children