NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Annie Duflo

Innovations for Poverty Action

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Institutional Affiliation: Innovations for Poverty Action

NBER Working Papers and Publications

June 2020External Validity: Four Models of Improving Student Achievement
with Jessica Kiessel, Adrienne Lucas: w27298
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.
 
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