Registration database

The data contained by the registration system serve exclusively the organization of scientific experiments. These data are not shared with third parties. We use the data for the following purposes:

• to inform the participants about new laboratory and Internet experiments,
• to perform a scientifically motivated selection of participants for certain experiments,
• and to verify the appearance or non-appearance of the registered participants in experiments.

Any person registered in the system can choose to stop receiving further invitations to experiments at any moment. Any person registered in the system can choose to cancel her(his) registration completely, in which case all the information about her(his) participation in the experiments will be fully erased from the system.

Use of the experimental data

During an experimental session, when participants act following the instructions, the information about the decisions they make (e.g. the decisions themselves, the amount of time it takes to make various decisions, details of communication with other participants, etc.) becomes experimental data. These (anonymous) data will then be analyzed by the experimenters with the purpose to discover new knowledge about human behavior generalizable beyond the group of subjects who participated in the experiment. Such knowledge, if discovered, will be disseminated, typically, through publications in the academic and industry journals, presentations made on conferences, workshops and seminars. Also, it is a standard practice in the profession that the data is kept for indefinitely long. It is not unusual that the data collected decades ago is still used by contemporary researchers.

Anonymity

The data collected during an experiment is anonymous (somewhat similar to how voting data is collected in general elections). This means, specifically, the following:

• Anonymity of participation. No any personally identifiable information is recorded during experimental sessions and, using these data it impossible to establish that person X participated in the experiment.
• Strong anonymity of decisions. Third parties, even knowing that an individual X participated in some experiment, will not be able to deduce the decisions made by this participant. Moreover, the participant her(him)self will not be able to prove it was she/he who made certain decisions.

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