Frequently Asked Questions

Le dédommagement que vous recevez à chaque expérience dépend généralement de vos décisions et de celles des autres participants.

Nous ne pouvons donc malheureusement pas vous donner d'informations plus précises à ce sujet. En aucun cas, vous ne pouvez perdre de l’argent en prenant part à ces expériences.

A titre indicatif, la durée des expériences varie entre 1 et 2 heures pour une rémunération pouvant aller jusqu’à 15€ par heure.

When you receive an email invitation for an experiment, you will have to follow the link, choose a session and confirm your participation in order to be signed up for the experiment. After signing up, you will receive a confirmation e-mail with your session details.

However, once you are signed up for a session, we expect that you show up. For details about "Canceling a session sign-up" please read the corresponding FAQ.

For most experiments we only invite a random subset out of all participants. We do that to ensure that not always the same people participate in our experiments.

Sometimes, we only invite participants which meet certain characteristics, for example people who have not participated in some particular previous experiments.

As a result, it is possible that you see experiment sessions in the calendar but you are not eligible to enrol. However, if not enough participants are signing up for these sessions, we may send out invitations to more participants.

Also, make sure that your participant profile is up-to-date, so we know your details and can invite you when you are eligible.

Anyone who is interested in participating in experiments can apply for a subject account. However, to participate in laboratory experiments, you should be able to come to our laboratory.

There is no possibility which allows you to cancel your session signup yourself.

So please make sure that you are available for an experiment session BEFORE you sign up for it.

However, if you become sick or are not able to attend the session due to some unforeseen circumstances, just reply to your invitation/confirmation e-mail AS SOON AS POSSIBLE and provide reasons. We will then take you off the list.

Almost all experiments consist of several sessions. You can only sign up for one session of a particular experiment. If you are signed up, the otrher sessions will disappear from the list.

As a rule of thumb: You will receive one invitation email for each experiment you are eligible for.

No, never do that. Your information is a crucial element of the experimental research. You will not be allowed to participate in an experiment if your profile or part thereof is found to be incorrect. In case you do not want to provide certain information about yourself, just leave the field blank. Note, however, that providing information will increase the probablility to be invited in experiments which target specific characteristics.

After conducting an experiment we need some time to update the recruitment database. If the experimenter has not filled in the participation data yet, there will be the three question marks as your "show-up" status for the experiment. Once the data is entered, the status will change to either "yes" or "no".