Tversky & Kahneman (1986)- cognitive- Biases in Thinking and Decision Making, Thinking and Decision Making Flashcards
(6 cards)
Aim
To test the influence of positive and negative frames on decision-making
Procedure
Researchers used a self-selected (volunteer) sample of 307 US undergraduate students.
Participants chose between two programs to respond to a disease outbreak, framed either positively (lives saved) or negatively (deaths). They picked between a certain outcome or a risky outcome based on the frame given.
Results
When information was framed positively, participants preferred the certain option. When framed negatively, they preferred the risky option.
This shows how framing influences decision-making by affecting people’s risk perception—people avoid risks when outcomes are positive but take more risks to avoid losses.
Cognitive Bias
systematic errors in thinking that affects the decisions and judgments that people make.
Identify the 3 Reasons we have Cognitive Biases
- We are Cognitive Misers
- We use heuristics (mental shortcuts to come to a decision)
- When our working memory is overloaded, we can’t reason well and show cognitive biases.
Framing Effect
Where people decide on options based on if the options are presented with positive or negative semantics.
E.G
A product that has been proven effective 80% of the time.
A product that has failed to work on 2 out of every 10 cases.