🚀 Launch: Urns Task
Configure and launch this test without registration. No data uploaded to our servers.
Description: An 'urns' or 'marbles' task examining decision-making under uncertainty and impulsivity. Participants sample colored marbles from a hidden urn and must decide which of two urns (with different color distributions) is being used. More evidence-gathering improves accuracy but costs points.
Estimated Duration: ~12 minutes
Test ID: urns
System Requirements
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Screen Size:
Minimum 1024×768 (Recommended: 1024×768)
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Keyboard required
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Color discrimination required
This test requires distinguishing between different colors. May be challenging for colorblind participants.
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Configuration
Optional: Specify a participant ID, or leave blank to auto-generate a unique ID.
Configure options above to generate URL