Definition

Confirmation bias refers to processing information by looking for, or interpreting, information that is consistent with one's existing beliefs. This biased approach to decision making is largely unintentional and often results in ignoring inconsistent information. Existing beliefs can include one's expectations in a given situation and predictions about a particular outcome. People are especially likely to process information to support their own beliefs when the issue is highly important or self-relevant.

Background and History

The confirmation bias is one example of how humans sometimes process information in an illogical, biased manner. Many factors of which people are unaware can influence information processing. Philosophers note that humans have difficulty processing information in a rational, unbiased manner once they have developed an opinion about the issue. Humans are better ...

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