english: This idea, the effect that punishment can improve performance, was what participants thought they were testing in Milgram's famous learning and punishment experiment that you've probably heard about if you're a psychology student.
non_english: Dit idee, namelijk dat straf  prestaties kan verbeteren, is wat de deelnemers  dachten dat ze testten in Milgrams beroemde  leer- en strafexperiment. Mogelijk heb je daar van gehoord  als psychologiestudent.