Psychology › Thinking, memory & biases › Heuristics and biases
Framing effects
1981· Finding or experiment
Well replicatedStrong, repeated evidence.
The same choice, described differently, such as lives saved versus lives lost, leads people to choose differently.
See it on the Psychology map →What it says
In Tversky and Kahneman's 1981 'Asian disease' problem, a hypothetical outbreak threatens 600 lives. Told a program 'saves 200 people' for sure, most chose it over a gamble. Told the same program means '400 people will die', most chose the gamble. Gain framing makes people cautious; loss framing makes them take risks. Everyday cases: '90% fat-free' versus '10% fat', or a cash discount versus a card surcharge.
Why it matters
Every offer, prospectus and pitch is framed. Restating a choice both ways, as a gain and as a loss, is a cheap check against being steered.
The evidence
Well replicated. The disease problem reproduced in the 2014 Many Labs project; Anton Kühberger's 1998 meta-analysis found reliable but moderate effects that depend on wording.
Open questions
Whether framing is a bias or a reasonable reading of what the speaker implies, since 'saves 200' can suggest 'at least 200', is debated.
Connections (2)
▸Framing effects are explained by Prospect theoryWell replicated
The connection
Prospect theory says people judge outcomes as gains or losses from a reference point, playing safe with gains and gambling to avoid losses. Framing moves the reference point: 'saves 200' sounds like a gain, '400 will die' like a loss, so the same choice flips.
Who showed it and when
Tversky and Kahneman, 'The Framing of Decisions and the Psychology of Choice', Science, 1981, two years after prospect theory.
The evidence
The framing paper explicitly derives its predictions from prospect theory's value curve, and the predicted flip replicates widely.
Open questions
Other explanations, such as people reading 'saves 200' as 'at least 200', can account for some framing effects without prospect theory.
▸Framing effects give persuaders a tool alongside Cialdini's principles of persuasionWell replicated
The connection
Framing presents the same facts as gains or losses, and persuaders use it constantly. Telling homeowners what they would lose by not insulating worked better than telling them what they would save. Cialdini's Pre-Suasion (2016) argues what you spotlight just before a request shapes the answer. On $1 million, a fee quoted as '1%' feels smaller than '$10,000 a year'.
Who showed it and when
Amos Tversky and Daniel Kahneman's 1981 Science paper; Marti Gonzales and colleagues' California home-energy study, 1988; Cialdini's Pre-Suasion, 2016.
The evidence
Gain–loss framing replicates in large multi-lab tests, including Many Labs in 2014; field effects in marketing are real but smaller and more variable.
Open questions
How strongly framing works on experienced, motivated people who see both versions; effects shrink when stakes are real and familiar.