Sign up


Please enter your email and a password - these values will be used to login. The password should be at least 8 characters long.


(one digit, one char and one special char needed)



Please provide the following fields:


The following fields are optional. The more fields you enter, the higher the chance of being invited to experiment sessions.


If you provide your phone number, we are able to contact you in case of last minute changes.





I have read and accepted the participant rules and privacy policy.

We should note that none of our experiments involve any pain or deception. You will be asked to solve some decision problem, usually interacting via a computer. Payments are usually made immediately after the end of the experimental session. We should note that places on experimental sessions are usually limited and frequently there are more people who want to book a place in an experiment than there are places available. Occasionally people who have booked do not show up. As you might imagine, this causes problems for us and for the other participants. As a consequence, we will eliminate from the hroot register people who book a place in an experiment but who do not show up and do not proffer a valid excuse. Also, because of the fact that not all people who book actually turn up, we typically book in a small number of reserves. Those reserves that are not needed are paid a consolation fee of £2.50 for turning up.





© 2011-2016 University of Hamburg | Site credits and contact