{"id":"mymindmine-knowledge-confirmation-bias-v1","slug":"confirmation-bias","domain":"psychology","title":"Confirmation Bias","deck":"The tendency to privilege evidence that fits prior expectations.","directAnswer":"Confirmation bias is the tendency to seek, notice, interpret, or emphasize evidence that supports prior expectations while discounting or failing to seek contradictory evidence.","mechanism":["Existing beliefs influence what information is searched for and what receives attention.","Interpretation can preserve a prior model even when ambiguous evidence would support several alternatives.","Social and algorithmic environments can amplify selective exposure."],"whyItMatters":["A system can feel increasingly certain while its evidence set becomes narrower.","Explicit alternative-generation can protect against premature closure."],"questions":["Why do people notice confirming evidence?","How can confirmation bias affect research?","What reduces confirmation bias?"],"related":["attention","perception","epistemology","metacognition"],"sources":[{"label":"APA Dictionary: confirmation bias","url":"https://dictionary.apa.org/confirmation-bias?vid=1000013","publisher":"American Psychological Association"}],"brajology":["RIPC focuses on a related but distinct failure mode: reward or interaction pressure causing premature epistemic narrowing."],"updated":"2026-09-20","canonicalUrl":"https://www.mymindmine.com/psychology/confirmation-bias","author":{"name":"John Brajer","url":"https://www.mymindmine.com/people/john-brajer"},"publisher":"MyMindMine","knowledgeSystem":"MyMindMine Knowledge System v1","epistemicBoundary":{"externalSources":"Sources support the external factual orientation.","originalLayer":"Brajology and MyMindMine interpretations are original framework material and are not attributed to external sources."}}