Streetlight effect
Encyclopedia
The streetlight effect is a type of observational bias where people only look for whatever they are searching by looking where it is easiest.
The parable is told several ways but includes the following details:
The parable is told several ways but includes the following details:
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- A policeman sees a drunk man searching for something under a streetlight and asks what the drunk has lost. He says he lost his keys and they both look under the streetlight together. After a few minutes the policeman asks if he is sure he lost them here, and the drunk replies, no, that he lost them in the park. The policeman asks whey he is searching here, and the drunk replies, "this is where the light is."