External Validity: Four Models of Improving Student Achievement

Resource type
Report
Authors/contributors
Title
External Validity: Four Models of Improving Student Achievement
Abstract
Randomized controlled trials in lower-income countries have demonstrated ways to increase learning, in specific settings. This study uses a large-scale, nationwide RCT in Ghana to show the external validity of four school-based interventions inspired by other RCTs. Even though the government implemented the programs within existing systems, student learning increased across all four models, more so for female than male students, and many gains persisted one year after the program ended. Three of the four interventions had a similar cost effectiveness. The intervention that directly targeted classroom teachers increased the likelihood that teachers were engaged with students.
Report Number
w27298
Place
Cambridge, MA
Institution
National Bureau of Economic Research
Date
06/2020
Pages
w27298
Language
en
Short Title
External Validity
Accessed
28/08/2020, 11:48
Library Catalogue
DOI.org (Crossref)
Extra
DOI: 10.3386/w27298 shortDOI: 10/ghgnd9
Citation
Duflo, A., Kiessel, J., & Lucas, A. (2020). External Validity: Four Models of Improving Student Achievement (No. w27298; p. w27298). National Bureau of Economic Research. https://doi.org/10.3386/w27298