Even psychologists respond to meaningless rewards. Thanks to Brian Nosek, co-founder of the Center for Open Science, the journal Psychological Science adopted the Center for Open Science badges to signal papers that use transparent practices. The move exploited a psychological phenomenon called signaling good behavior.
Turns out the Badges gave scientists a way to signal that they care about research transparency and it worked. After Psychological Science adopted the badges, data sharing rose nearly tenfold in the papers it published.