Notes for 2.2.5 Confirmation Bias - IB | RevisionDojo
2.2.5 Confirmation Bias Notes
Confirmation Bias Shapes How We Interpret Information
Confirmation bias is the tendency to seek, interpret, and remember information that supports pre-existing beliefs while ignoring contradictory evidence.
This bias plays a crucial role in shaping how we perceive the world and make decisions.
Example
In politics, individuals often read news sources that align with their views, reinforcing their beliefs while dismissing opposing perspectives.
Similarly, stereotypes are maintained by interpreting behavior through biased expectations, such as assuming a person is unfriendly based on preconceived notions about their social group.
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Note
Confirmation bias is a pervasive cognitive phenomenon where individuals are biased toward finding information that supports their pre-existing beliefs. This happens through preferential information seeking, selective attention, and biased memory recall.
Think of confirmation bias as an internal 'yes-man' that always tries to agree with your existing views.
Once a belief is established, our minds subconsciously begin filtering information through that perspective.
Analogy
Confirmation bias works like a search engine algorithm - the more you click on certain types of results, the more similar results it will show you in the future, reinforcing your preferences.
Example
A person who believes a certain diet is healthy will only read articles supporting that view while ignoring studies that contradict it.
