This is a Lexicon entry: the mechanism, when it shows up, and the countermeasure. The full correction, with real-world cases and the audit prompt, hasn't been written yet.
Definition
The observation that our decisions are heavily influenced by how the choices are presented or "framed." The same surgery described as having a "90% survival rate" vs. a "10% mortality rate" generates dramatically different responses.
When it shows up
Medical consent discussions, financial product presentations, political messaging, sales. Any decision where the options can be described multiple ways. Modern context: A public health intervention described aspreventing 200 deathsproduces higher uptake than the same intervention described as'leaving 800 people unprotected'- even when the target population knows the numerical equivalence and has been briefed on framing effects. High-stakes instance: Public health - vaccination uptake, organ donation registration and pension contribution rates are all significantly affected by default framing (opt-in vs opt-out), with identical underlying choices producing outcome differences of 20-40 percentage points. Failure mode: Identical options produce different choices based on how they're framed. '90% survival' and '10% mortality' are the same data but generate different decisions. The frame does the deciding, not the underlying option. Estimated cost: High - often irreversible where this bias dominates unchecked decisions.
Failure mode
Identical options produce different choices based on how they're framed. '90% survival' and '10% mortality' are the same data but generate different decisions. The frame does the deciding, not the underlying option.
Countermeasure
Rewrite the decision in the inverse frame before choosing. If your preference flips, the frame was carrying the choice, not the option. Choose on the option, not on its packaging. When correction costs more than the bias: When the frame accurately reflects the structure of the situation. A loss frame applied to a genuinely high-downside situation is not a bias - it is accurate risk communication. The framing effect is a problem when the frame is arbitrary and the choice of frame is driving the decision independently of its content.
Related traps
Also connected in the map9 more, locked
Credit & first seen
DiscoveredIdentified by Amos Tversky and Daniel Kahneman in their 1981 paper on the framing of decisions.
Also revealed
Entry #64 of 631 in The Lexicon · see the full Lexicon