Publication Date
| In 2025 | 0 |
| Since 2024 | 0 |
| Since 2021 (last 5 years) | 0 |
| Since 2016 (last 10 years) | 3 |
| Since 2006 (last 20 years) | 3 |
Descriptor
| Effect Size | 3 |
| Grade 5 | 3 |
| Mathematics Achievement | 3 |
| Randomized Controlled Trials | 3 |
| Faculty Development | 2 |
| Foreign Countries | 2 |
| Grade 3 | 2 |
| Grade 4 | 2 |
| Achievement Gains | 1 |
| Achievement Tests | 1 |
| Comparative Analysis | 1 |
| More ▼ | |
Author
| Haas, Alison | 1 |
| Hedberg, E. C. | 1 |
| Hedges, Larry | 1 |
| Hegseth, Whitney Michelle | 1 |
| Jaciw, Andrew P. | 1 |
| Jiang, Feng | 1 |
| Kieffer, Michael J. | 1 |
| Lee, Okhee | 1 |
| Lin, Li | 1 |
| Llosa, Lorena | 1 |
| Ma, Boya | 1 |
| More ▼ | |
Publication Type
| Reports - Research | 3 |
| Journal Articles | 2 |
| Numerical/Quantitative Data | 1 |
Education Level
| Elementary Education | 3 |
| Grade 5 | 3 |
| Intermediate Grades | 3 |
| Middle Schools | 3 |
| Grade 3 | 2 |
| Grade 4 | 2 |
| Early Childhood Education | 1 |
| Elementary Secondary Education | 1 |
| Grade 2 | 1 |
| Grade 6 | 1 |
| Grade 7 | 1 |
| More ▼ | |
Audience
Location
| Arizona | 1 |
| Arkansas | 1 |
| Colorado | 1 |
| Illinois | 1 |
| Kentucky | 1 |
| Louisiana | 1 |
| Massachusetts | 1 |
| Minnesota | 1 |
| North Carolina | 1 |
| Singapore | 1 |
| West Virginia | 1 |
| More ▼ | |
Laws, Policies, & Programs
Assessments and Surveys
| National Assessment of… | 1 |
| Stanford Achievement Tests | 1 |
| Trends in International… | 1 |
What Works Clearinghouse Rating
Peer reviewed
Download full textHedberg, 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
Direct linkJaciw, 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
Llosa, Lorena; Lee, Okhee; Jiang, Feng; Haas, Alison; O'Connor, Corey; Van Booven, Christopher D.; Kieffer, Michael J. – American Educational Research Journal, 2016
The authors evaluated the effects of P-SELL, a science curricular and professional development intervention for fifth-grade students with a focus on English language learners (ELLs). Using a randomized controlled trial design with 33 treatment and 33 control schools across three school districts in one state, we found significant and meaningfully…
Descriptors: Intervention, Science Education, Science Course Improvement Projects, Program Effectiveness
