How your mind bends reality.
Experience classical cognitive biases firsthand through 60-second experiments. See your own decision patterns — then compare them against thousands of others.
4
distinct bias paradigms
5,080
anonymous responses
~60s
per experiment
Featured Experiments
Choose your bias
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.
Process
How it works
Choose an experiment
Each experiment tests a different cognitive bias, from anchoring to loss aversion. Each takes under 90 seconds.
Make your decision
You're presented with scenarios designed by behavioral economists. Answer honestly — your first instinct is most informative.
See yourself in the data
Your result is placed against the aggregate distribution. You'll see whether your bias is stronger or weaker than average.
Anonymous by design
No names, emails, or identifying information are collected. We store only your experimental response and a session ID that is never linked to your identity. Read our methodology →