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Direct linkKelcey, Ben; Spybrook, Jessaca; Phelps, Geoffrey; Jones, Nathan; Zhang, Jiaqi – Journal of Experimental Education, 2017
We develop a theoretical and empirical basis for the design of teacher professional development studies. We build on previous work by (a) developing estimates of intraclass correlation coefficients for teacher outcomes using two- and three-level data structures, (b) developing estimates of the variance explained by covariates, and (c) modifying…
Descriptors: Faculty Development, Research Design, Teacher Effectiveness, Correlation
Piper, Benjamin; Zuilkowski, Stephanie S.; Ong'ele, Salome – Comparative Education Review, 2016
Research in sub-Saharan Africa investigating the effect of mother tongue (MT) literacy instruction at medium scale is limited. A randomized controlled trial of MT literacy instruction was implemented in 2013 and 2014 as part of the Primary Math and Reading (PRIMR) Initiative in Kenya. We compare the effect of two treatment groups--the base PRIMR…
Descriptors: Foreign Countries, Native Language, Literacy Education, Native Language Instruction
VanDerHeyden, Amanda M.; Codding, Robin S. – School Psychology Review, 2015
The current article presents additional analyses of a classwide mathematics intervention, from a previously reported randomized controlled trial, to offer new information about the treatment and to demonstrate the utility of different types of effect sizes. Multilevel modeling was used to examine treatment effects by race, sex, socioeconomic…
Descriptors: Intervention, Mathematics Instruction, Randomized Controlled Trials, Effect Size
Fuchs, Lynn S.; Sterba, Sonya K.; Fuchs, Douglas; Malone, Amelia S. – Journal of Research on Educational Effectiveness, 2016
The purpose of this set of analyses, conducted on a randomized control trial examining the effects of a fourth-grade fraction intervention, was to assess the initial academic deficit severity hypothesis. With this hypothesis, at-risk students with more severe initial academic deficits are expected to profit less from intervention than do students…
Descriptors: Grade 4, Fractions, Mathematics Instruction, Intervention
Download full textClarke, Ben; Doabler, Christian T.; Kosty, Derek; Kurtz Nelson, Evangeline; Smolkowski, Keith; Fien, Hank; Turtura, Jessica – Grantee Submission, 2017
This study used a randomized controlled trial design to investigate the ROOTS curriculum, a 50-lesson kindergarten mathematics intervention. Ten ROOTS-eligible students per classroom (n = 60) were randomly assigned to one of three conditions: a ROOTS five-student group, a ROOTS two-student group, and a no-treatment control group. Two primary…
Descriptors: Randomized Controlled Trials, Comparative Analysis, Kindergarten, Mathematics Instruction
Jaciw, Andrew P.; Hegseth, Whitney Michelle; Lin, Li; Toby, Megan; Newman, Denis; Ma, Boya; Zacamy, Jenna – Journal of Research on Educational Effectiveness, 2016
This study investigates, through a cluster randomized trial, the impact of "Math in Focus," a core mathematics program modeled after instructional approaches used in Singapore, on third- through fifth-grade students' achievement in mathematics. The program is currently being used in more than 400 school districts in the United States.…
Descriptors: Foreign Countries, Randomized Controlled Trials, Mathematics Instruction, Grade 3
