Science Advances

Supplementary Materials

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  • Supplementary Text
  • Fig. S1. Illustrative map of 106 sampled communities and mobile phone towers.
  • Fig. S2. Illustrative map of sampled communities in an urban area, Port Harcourt.
  • Fig. S3. Ex ante predictions for rates of corruption reporting per treatment condition.
  • Fig. S4. Difference in perceptions of social norms regarding corruption and corruption reporting.
  • Fig. S5. Difference in perceptions of social norms regarding corruption and corruption reporting, for police and bureaucrat corruption and government corruption.
  • Table S1. Summary of text messages received in response to the two study campaigns.
  • Table S2. Corruption messages sent as a result of the treatment film and mass text.
  • Table S3. Changes in social norms outcomes as a result of the treatment film.
  • Table S4. Summary statistics for items in social norms outcome indices.
  • Table S5. Full text of survey questions and response scales used in the design and analysis.
  • Table S6. Corruption messages sent as a result of the treatment film and mass text, averaged over the period before the mass text and the period after.
  • Table S7. Corruption messages sent as a result of the treatment film and mass text, dropping communities with no film watchers.
  • Table S8. Corruption messages sent as a result of the treatment film and mass text, dropping communities that received the mass text early.
  • Table S9. Corruption messages sent as a result of the treatment film and mass text, using assigned mass text send date.
  • Table S10. Corruption messages sent as a result of the treatment film and mass text, controlling for week of film distribution.
  • Table S11. Corruption messages sent as a result of the treatment film and mass text interaction, with distribution duration control.
  • Table S12. Messages related to corruption that are not detailed corruption reports sent as a result of the treatment film and mass text.
  • Table S13. Changes in social norms outcomes as a result of the treatment film, controlling for individual-level covariates.
  • Table S14. Changes in social norms outcomes as a result of the treatment film, controlling for week of film distribution start.
  • Table S15. Changes in social norms outcomes as a result of the treatment film, controlling for the duration of film distribution.
  • Table S16. Changes in social norms outcomes as a result of the treatment film, with enumerator fixed effects.

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