In order to participate in experiments at the University of St. Andrews's Experimental Economics Laboratory, you must register in our database using the lab's online recruitment system. Part of this registration process involves acknowledging the following basic rules of conduct:

• You can only register once with the ORSEE database. Indeed, in order to guarantee that you do not register more than once we require you to use your University of St Andrews e-mail address. Registering multiple accounts undermines our scientific research. Any participant found with more than one profile will be excluded from all future studies.
• Only current students and members of staff of the University of St Andrews are eligible to participate in our experiments. You must bring your unexpired University of St Andrews ID card to each session, so that the researchers can verify your status.
• A certain number of registered persons will receive an invitation email to participate in an experiment. The exact number is determined by the researcher conducting that experiment. Only the invited persons may take part in that experiment.
• When you receive an invitation email, you must then sign-up to a session in order to participate. Spaces in an experiment are limited, so it is important to sign-up early so that spaces are still available. Important Note: Once you sign-up for a session, you cannot later delete your entry for a session, so please verify that you are actually able to come to the session before you sign-up for it.
• Usually, some extra persons are invited to ensure that a minimum participation level is achieved. Alternates will receive compensation for arriving for the experiment on time. The exact amount of this payment is determined by the researcher conducting that particular experiment, and is often described in the invitation email.
• Participants will usually be monetarily compensated based on the decisions that they and (often) others make during the experiment, as well as chance. The exact rules that determine the amount paid is decided by the researcher conducting the particular experiment.
• Important Note: Anyone who had signed-up for an experimental session and does not show up will not receive any monetary compensation for that experimental session. In addition, he or she will be sent a "no-show" message. After a person receives 5 no-show messages, he or she will be permanently removed from the database, and will be ineligible for any further experiments.
• During an experiment, participants must follow the instructions of the researchers. The researchers will identify themselves before the experiment starts.

The University of St. Andrews's Experimental Economics Laboratory's research-ethics responsibilities include the proper safeguarding of potentially sensitive data collected during an experiment. The University of St. Andrews's Experimental Economics Laboratory takes the following steps to meet its confidentiality requirements:

• All data collected during recruitment is stored on a server that is accessible only to The University of St. Andrews's Experimental Economics Laboratory's research staff and to the members of The University of St. Andrews's IT services. These data are used only for the purpose of recruiting subjects to participate in experiments conducted at the University of St. Andrews's Experimental Economics Laboratory.
• All personally-identifying data collected during an experiment (e.g., your name) is processed according to the approved ethics document of the respective study. Usually, any personal information is replaced with a code number, and the list linking code numbers to personally-identifying data is kept separate from the experimental data.
• All human-subjects forms containing personally-identifying information (e.g., informed consent) are stored in secure locations.

As a human-subject participant in a study conducted at the University of St. Andrews's Experimental Economics Laboratory, it is your right to lodge a complaint if you believe that sensitive information about you collected during an experiment has not actually been kept confidential. Such complaints can be delivered to a member of the Ethics committee of the School of Economics and Finance of the University of St. Andrews.