For Participants

C.E.L.S.S. uses the Online Recruitment System for Economic Experiments (ORSEE) software, a web-based Online Recruitment System specifically designed for organizing laboratory experiments.

You can register to be a participant at C.E.L.S.S. and earn money while contributing to the advancement of social sciences by clicking here. You will join more than 1500 students and other members of the Columbia community who have already registered.

When you are registered, you will receive emails anytime there is an experimental session opening for which you satisfy the experiment’s selection criteria.

Signing up for an experiment and showing up at the scheduled time and date guarantees a “show-up fee” of $5. Your final earnings depend on the outcome of the experiment. We advise you to turn up at least 5 minutes before the start of the experiment to avoid being marked as absent since experiments tend to start on time.

Please follow the rules given to you on ORSEE when you register in our subject pool.

If you have any question about registration, please contact the lab manager.

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