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

Autores:
Rafael J. Santos, Angela González, Kevin López, Juan A. Paez, María Camila Rivera y Paula Sarmiento
Palabras clave:
Caffeine, Test-Scores
Archivo:
Año:
2018
Mes:
Febrero
Número:
17