/sci/ - Science & Math

>>6862419
I am looking for a study :/
Only remember the contents, not the year or authors or title or anything. Not sure if the study was in English or Dutch.
Psychology, selection bias.
The researchers had people let themselves divide into pessimists and optimists, after which they let them enter a restaurant or something, with money (banknote, not coin, I thought) strategically located on the floor by the door. The optimists all saw the money and picked it up, while the pessimists didn't notice it.
Hence pessimism/optimism selection bias confirmed.