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authorEltrac <hi@guhub.cn>2025-06-02 12:16:29 +0800
committerEltrac <hi@guhub.cn>2025-06-02 12:16:29 +0800
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+---
+title: 路灯效应
+tags:
+ - 心理学
+ - 逻辑
+date: 2025-06-02T12:16:00
+---
+
+路灯效应是一种观察偏差(observational bias),意思是说当事人只在最明显的地方搜索样本,忽略了更难找的地方也可能存在的样本,进而造成了偏差。
+
+路灯效应的名字出自一个笑话:
+
+> 警察看见一个醉汉在路灯下找东西,便问他丢了什么。醉汉说他的钥匙不见了,让警察帮他一起找。两个人找了半天都没有找到钥匙,警察问他:“你确定你的钥匙掉这了吗?”
+>
+> 醉汉说:“不是,我在公园丢的。”
+>
+> 警察说:“那你为什么在路灯下面找?”
+>
+> 醉汉说:“因为这里有光!”
+
+<span style="font-size:80%">Source: [Streetlight effect - Wikipedia](https://en.wikipedia.org/wiki/Streetlight_effect)</span> \ No newline at end of file