confirmation bias
/ˌkɒnfərˈmeɪʃən ˈbaɪəs/
Very CommonThe tendency to notice and believe information that confirms what you already think.
Often used as a gotcha to dismiss someone's argument, but it applies to everyone equally, including the person making the accusation. Saying 'that's just confirmation bias' is itself a popular form of it.
| # | Example | What it means | Source |
|---|---|---|---|
| 01 | You only shared the studies that agree with you. That's confirmation bias and nothing else. | The person cherry-picked supporting evidence while ignoring contradicting research. | reddit, 2024 |
| 02 | Every time something bad happens he says see i told you so. Textbook confirmation bias. | The person treats any confirming event as validation while ignoring disconfirming ones. | x, 2023 |
| 03 | I caught myself doing confirmation bias so hard. I literally closed tabs that contradicted me. | Self-aware acknowledgment of selectively consuming information. | reddit, 2024 |
| 04 | The algorithm feeds the confirmation bias. You click one thing and suddenly that's all you see. | Platforms amplify confirmation bias by surfacing more of whatever you already engaged with. | tiktok, 2024 |
Use it when
- Someone only notices news stories that support their political position.
- Someone cites studies that back their view and dismisses any that don't.
- Someone interprets ambiguous evidence as proof they were right all along.
Do not use it when
- Someone simply disagrees with you or argues from a different value set.
- Someone has a well-reasoned position that happens to confirm their prior view.
Confirmation bias vs echo chamber
confirmation bias
Confirmation bias is an internal cognitive tendency. It happens in your head regardless of your environment.
echo-chamber
An echo chamber is an external social environment that reinforces beliefs through group agreement.
Origin and context
Term from cognitive psychology, documented extensively by researchers Peter Wason and later Daniel Kahneman. Entered popular internet vocabulary as psychology concepts became mainstream through social media and podcasts.
- First seen
- 1960s
- Confidence
- high
Cite this page
Use this stable URL to reference the entry.
https://slang.fyi/bias-confirmation