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2 Postdoctoral researchers on the effects of social media use on self-esteem

The Amsterdam School of Communication Research ASCoR has a vacancy for 2 Postdoctoral researchers on the effects of social media use on self-esteem.
The two postdoctoral researchers will participate in a three-year project that runs ...

10 maanden geleden


Amsterdam, Noord-Holland
Tijdelijk contract / Tijdelijke opdracht
Uren per week:
38 uur
€ 3475 - € 4757 per maand


The Amsterdam School of Communication Research ASCoR has a vacancy for 2 Postdoctoral researchers on the effects of social media use on self-esteem.

The two postdoctoral researchers will participate in a three-year project that runs until March 2021. The aim of the project is to investigate the effects of social media use on adolescents’ self-esteem and well-being. In the literature, two opposite hypotheses on the relationship between social media use, self-esteem and well-being can be found. A first hypothesis predicts that some adolescent social media users may be more sensitive than others to the abundance of positive feedback in social media, which may stimulate their self-esteem and well-being. A second hypothesis states that the positivity bias on social media may enhance the tendency of some adolescents to compare themselves upwardly to other users, which, in turn, may hinder they self-esteem and well-being.

In this project, we will adopt a person-specific approach, which allows us to investigate which of the two mechanisms holds for which individual adolescent and when. We will follow adolescents between 11 and 16 for a one year period. In this period, we will administer five repeated 3-month online questionnaires and 25 two-weekly online questionnaires. In addition, we will employ two 21-day measurement bursts with daily experience sampling methods and diaries 5 times a day. This measurement-burst design will allow us to assess and visualize each adolescent’s unique sensitivity to the effects of peer interactions via social media.

Tasks of the two postdoctoral researchers:

  • collect and analyse survey and experience sampling data in the first year of the project;
  • write-up of publications on the newly collected and existing datasets;
  • work in a team together with the two PI’s of the project (Prof Valkenburg and Dr. Keijsers), and another post-doctoral researcher.


The project lasts until March 2021 (three years), with a possibility for extension. Candidates for this position should have considerable academic experience at the PhD level in working with quantitative data, as well as experience with collecting data among adolescents or young adults.

In addition, a successful candidate should have:

  • a PhD degree in communication, developmental psychology, or related discipline;
  • knowledge of and experience with survey research, experience sampling, and advanced data analysis (e.g., continuous-time models, multivariate time series, random-intercept CLPMs);
  • outstanding organizational skills, as well as flexible attitude;
  • enthusiasm to communicate with adolescents and families;
  • excellent oral and written communication skills in Dutch and English.


The appointment will be on a temporary basis for a period of 36 months (March 2018-March 2021). Based on a full-time appointment (38 hours per week) the gross monthly salary will range from €3,475 to €4,757 (scale 11) depending on expertise and previous experience. The salary is supplemented with a holiday allowance of 8% and an end-of-year bonus of 8,3%. The Collective Labour Agreement for Dutch Universities is applicable.

Additional information

A detailed project description may be obtained from:

Questions about the project content should be addressed to:

Questions about the application procedure and other general questions should be addressed to:

To process your application, please quote vacancy number 17-633 and the title of the position you are applying for in the subject-line. Please send the following documents in English by e-mail to ascor-secr-fmg@uva.nl:

  • a motivation letter. Please clearly indicate the position you apply for;
  • a curriculum vitae and publication list;
  • proof of your PhD degree. If you have not completed your degree at the time of application, please provide a statement from your supervisor confirming the expected date of completion of your degree;
  • an academic writing sample in English (e.g., journal article, PhD dissertation);
  • the names and contact addresses of two academic references from which information about the candidate may be obtained.

Please send all your documents in PDF format in one PDF file. Only complete applications will be considered.

The deadline for applications is Sunday 21 January 2018.


With over 5,000 employees, 30,000 students and a budget of more than 600 million euros, the University of Amsterdam (UvA) is an intellectual hub within the Netherlands. Teaching and research at the UvA are conducted within seven faculties: Humanities, Social and Behavioural Sciences, Economics and Business, Law, Science, Medicine and Dentistry. Housed on four city campuses in or near the heart of Amsterdam, where disciplines come together and interact, the faculties have close links with thousands of researchers and hundreds of institutions at home and abroad.

The UvA’s students and employees are independent thinkers, competent rebels who dare to question dogmas and aren’t satisfied with easy answers and standard solutions. To work at the UvA is to work in an independent, creative, innovative and international climate characterised by an open atmosphere and a genuine engagement with the city of Amsterdam and society.

Amsterdam School of Communication Research

This Spinoza project of professor Patti Valkenburg, funded by the Dutch science foundation NWO, focuses on the effects of social media use on self-esteem and well-being among adolescents. The project is hosted at the at the UvA and will be conducted in collaboration with Dr Loes Keijsers, Department of Developmental Psychology at Tilburg University. The postdoctoral reseachters will be located at both the UvA and University of Tilburg. The Amsterdam School of Communication Research ASCoR is the research institute in communication Science at the University of Amsterdam. It is the largest research institute of its kind in Europe and is among the largest worldwide. More than 50 senior researchers are permanently associated with ASCoR, and its English-language PhD program has more than 40 students.