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Thesis and paper writing

When writing a thesis or paper you must make good use of the insights you have gained during your lectures and studies so far. You should also refer to relevant literature and carry out your own research on the topic.

One of the most important things you will learn during an academic study programme is how to write an interesting piece of work that meets the criteria of scientific quality, whilst also being accesible to the broader public.

Refer to our Study tips pages for more information on academic writing skills. 

Master Thesis Lab

The Master Thesis Lab is a facility open to all FSW master's students who are preparing their master thesis or master's project. The Master Thesis Lab offers various facilities, like computer work spaces, books and advice.


To complete the master’s programme, students have to write an empirical thesis on a subject related to their field of study. You must follow the proper procedures to complete your education. The different master’s specialisations each have different requirements. More information on the master's thesis can be obtained at the master's specialisations in the e-Prospectus Psychology

Recruiting participants

To recrute participants for your research, you can publish an advertisement on the Leiden University Research Participation website. For this you need an account. On this page you can find the steps on how to start an experiment.

Choose an account

To keep track of our participants, we use an online experiment registration system. This system has three types of accounts.

Researcher accounts
Allows you to create and manage studies. You have the option of: 

  1. Bachelor thesis, researcher account for one study.
  2. Master thesis thesis, researcher account for one study.
  3. Principal Investigor, account for multiple studies*.

*NB: P.I. accounts are only for employees within the Institute of Psychology or the Institute of Education and Child Studies. All correspondence uses the e-mailadres of your researcher account. If this is an issue, use a single researcher account per study.

Allows you to advertise your studies to participants.

Principal Investigor accounts (supervisor)
Allows supervisors access to the studies they supervise. These accounts are usually issued automatically. 

Applying for an account

It is advised to request your account 1 or 2 weeks before the start of your study. You can apply for a researchers account by e-mailing proefpersonen@FSW.leidenuniv.nl. Use "Research Account Sona" as the subject of the e-mail and provide us with the following informaton:

First name and surname:


  1. Download the SONA User Manual for Researchers.
  2. Request a researcher account as instructed in the maual.
  3. You will receive an e-mail with your login details.
  4. Go to Leiden University Research Participation 
  5. Log in with the provided account details.
  6. Create a new study, according to the guidelines.
  7. At the end of your study, deactivate your study.


E-mail questions to the system manager

Olivier de Winter

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