Fundamental Attribution Error
Also known as: correspondence bias, attribution error
Explaining other people's behavior by their character while underrating the power of their situation: the driver who cut you off is a jerk, never someone rushing to a hospital.
Examples
A car swerves across two lanes to make an exit.
Dev: “What an idiot. People like that shouldn’t have licenses.”
Maybe. Or it’s a decent driver having the worst morning of the year. Dev has no way to know — but “idiot” came instantly, and no situational story was even considered.
It shapes how we read strangers online:
Comment: “Asked a simple question in the forum and got a one-line answer. Arrogant community.” Reply: “Or one tired volunteer answering forty questions at once.”
One data point, produced under circumstances we can’t see — and we confidently print a character diagnosis from it.
Why it happens
When you watch someone act, the person is vivid and their situation is mostly invisible. The behavior looks like a window into character, so the inference “did something rude → is rude” feels like observation rather than guesswork. In the classic experiments, people read an essay they knew the writer had been assigned to defend — and still concluded the writer believed it. This “correspondence bias” is one of the most strongly replicated effects in social psychology, though its strength varies: people in cultures that emphasize context lean on situations more than those in individualist cultures do.
The error compounds in conflict: once you’ve filed someone as a jerk, their next ambiguous act confirms it — with help from confirmation bias — and attacking their character starts to feel like refuting them, which is the ad hominem fallacy.
How to counter it
- Ask the one-question test: “What situation could make a reasonable person do this?” You don’t have to believe the story — just generating it loosens the verdict.
- Wait for a pattern. Character claims need repeated behavior across different situations; one sample proves almost nothing.
- Notice the stakes: you’re most confident about strangers’ characters precisely when you know the least about their circumstances.
- In arguments, swap diagnosis for description: “That reply was curt” is defensible; “you’re arrogant” is a guess dressed as a fact.