Cognitive Bias Laboratory
Experiments
Each experiment replicates a classic behavioral economics paradigm. You are randomly assigned to a condition where applicable — this mirrors controlled experimental design and allows meaningful comparison across participants.
The Anchor Effect
How an irrelevant number shapes your estimate
You will be shown a random number, then asked to estimate an unrelated quantity. The experiment tests whether that initial number — the "anchor" — influences your response.
Framing Effect
Identical outcomes, different choices
The same policy outcome is described once as lives saved and once as lives lost. You will see one version and make a choice — your response reveals how framing shapes preference.
Loss Aversion
Losses loom larger than equivalent gains
You face a choice between a guaranteed small gain and a 50/50 gamble for a larger gain or moderate loss. The experiment measures your personal loss-aversion coefficient.
Overconfidence Effect
How well do you know what you know?
Before a short general-knowledge quiz, predict your score. Afterwards, see how your actual performance compares to your prediction — and to the aggregate overconfidence gap.
A note on validity
This platform replicates established paradigms for educational purposes. Results reflect self-selected internet samples and should not be interpreted as controlled scientific data. For caveats, see our Methodology page.