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Payment procedure

Dear participant,

Great you are a member of the Paid Participant Pool of Psychology.

The payment procedure has recently changed. The advantage is that the payment procedure is now more automated which means payment occurs faster.

It does mean that we have to ask you to – before you take part in any study of the Paid Participant Pool (online or in the lab) – to register for the university payment tool. You can register via .

Registration takes less than five minutes of your time!

Thanks in advance for registering! If you have any questions, feel free to email us via


Norbert Borger

PS: If you have not been able to participate in many studies yet – we see that researchers increase their use of the PPP in the course of the academic year. So keep an eye on the Psychology (Paid-) Participant Pool website ( )

November 2018: first semester, second block

The number of studies is not large, but it is expected that gradually new studies will be presented in PPP. In your account you only see the studies with available timeslots for which you can sign in immediately.

Recruitment via the Kei-week August, 2018

More than 100 new participants signed up for information at the Kei-week stand in which we recruited new students for the Paid Participant Pool. Due to adjustments in the ppp-system in line with the new privacy rules we only recently mailed them the information.

From August, 2018: please fill in pre-screen questionnaire (even if you are an ‘old’participant)!

For those of you who wish to log on to the system the first time after the summer holiday as a participant in the PPP, please note you need to fill out the short pre-screen questionnaire again. This means that even if you log in with your existing account, you will be asked to fill in this very short questionnaire. This time the main reason was that the number of questions drastically was decreased, only some important basic questions will be asked now. Another reason was to update the information of the participants. All prescreen questionnairs and answers before this month are deleted in PPP.

In August, 2016, old accounts which were not used anymore were deleted.

Accounts which have not been used for a longer period (longer than one year) were deleted on August 1, you can set up a new account if you wish to participate again.

Our team28 August 2015
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