Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/321368 
Year of Publication: 
2025
Series/Report no.: 
I4R Discussion Paper Series No. 241
Publisher: 
Institute for Replication (I4R), s.l.
Abstract: 
Wang et al. (2024) report that Bangladeshi students randomly given access to lessons on a phone server saw significant learning gains during COVID- 19 school closures. We identify three sets of anomalies. First, this experiment shares participants with another experiment conducted simultaneously in the same region, but test scores for the same children systematically differ between the two experiments. Second, test scores for treated participants exhibit a uniform upward shift that is completely insensitive to the number of lessons children complete. Third, numerous documentation inconsistencies (e.g., concerning survey materials, randomization procedures, etc.) cast doubt on the study's data.
Subjects: 
Reproduction
school closures
remote education
COVID-19
randomized controlled trial
Bangladesh
JEL: 
B41
C12
C93
I21
I24
Document Type: 
Working Paper

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