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Doping to Underperform: The Impact of Coffee Consumption on Test Scores

Author

Listed:
  • Rafael J. Santos
  • Angela González
  • Kevin López
  • Juan A. Paez
  • María Camila Rivera
  • Paula Sarmiento

Abstract

We report results of an experiment that randomly distributed coffee and an herbal infusion with no caffeine to students before a non-experimental midterm (ie: with real incentives). Coffee consumption decreases test scores. This is driven by students who are not habituated to consume coffee and who self-report feeling nervous in similar tests. Regular coffee drinkers do not seem to benefit or lose from coffee consumption except if they are coffee-deprived the day of the exam (in which case they perform worse, consistent with the withdrawal reversal hypothesis).

Suggested Citation

  • Rafael J. Santos & Angela González & Kevin López & Juan A. Paez & María Camila Rivera & Paula Sarmiento, 2018. "Doping to Underperform: The Impact of Coffee Consumption on Test Scores," Documentos CEDE 16194, Universidad de los Andes, Facultad de Economía, CEDE.
    • Handle: RePEc:col:000089:016194
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    File URL: https://repositorio.uniandes.edu.co/bitstream/handle/1992/7861/dcede2018-17.pdf
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    More about this item

    Keywords

    Caffeine; Test-Scores;

    JEL classification:

    • A22 - General Economics and Teaching - - Economic Education and Teaching of Economics - - - Undergraduate
    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior
    • I20 - Health, Education, and Welfare - - Education - - - General

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