Backfire Effect

Sometimes, when we are presented with evidence that contradicts a belief we hold, we do not update our thinking — we may even hold the original belief more strongly. However, this is not a universal response: most factual corrections do improve accuracy, and strong backfire effects appear mainly in specific identity-threatening, ideological or highly polarised situations.

Beliefs can become tied to identity. When a belief feels like part of who we are, contradicting evidence can feel like a personal attack rather than new information. This can trigger a defensive reaction where the original belief is reinforced, especially when the correction comes from a source perceived as opposing our views. Importantly, later research has found that strong backfire responses are less common than popular accounts suggest, and many corrections succeed without provoking resistance.

• After reading a fact-check debunking a political claim you shared, you feel more certain the claim was true.
• When someone shows you data contradicting your favourite diet, you dismiss the data and cite another study that supports your view.
• A fan confronted with statistics about their team's poor performance attributes the numbers to biased reporting rather than reconsidering their optimism.

• Notice when a correction makes you feel attacked.
• Ask: 'Am I responding to the evidence or defending my identity?'
• Seek the strongest version of the opposing argument.
• Changing your mind is a sign of learning, not weakness.