Dr. Jan-Willem van Prooijen


This website is designed to inform you about the research, teaching, and other academic activities of Dr. Jan-Willem van Prooijen. He currently works as an Associate Professor at the department of Social and Organizational Psychology of VU Amsterdam, and as a Senior Researcher at the Netherlands Institute for the Study of Crime and Law Enforcement (NSCR). The main overarching theme of his research concerns injustice, conspiracy beliefs, and ideology. Research topics include (for instance) the psychology of punishment, responses to crime victims, corruption, belief in conspiracy theories, and political extremism. More details on Dr. van Prooijen’s research on these issues can be found under “research”. Dr. van Prooijen published his research findings in journals such as Journal of Personality and Social Psychology, Journal of Experimental Social Psychology, and Personality and Social Psychology Bulletin, and presented his research at many international conferences around the world. He received research funding from various sources, and was in 2006 awarded the Early Career Contribution Award by the International Society for Justice Research (ISJR). He is currently Associate Editor for Personality and Social Psychology Bulletin and for Social Justice Research, has been Associate Editor for European Journal of Social Psychology, and has been on the Editorial Board of various prestigious journals, including JPSP-IRGP and Psychological Science. Since July 2016, he is president of ISJR.

What’s new?

New Book:

Van Prooijen, J.-W., & Van Lange, P. A. M. (Eds.) (2016). Cheating, corruption, and concealment: The roots of dishonesty. Cambridge, UK: Cambridge University Press. 

For an abstract and overview of contents, click HERE.

Order HERE

Recent publications:

Razzaq, S., Iqbal, M. Z., Ikramullah, M., & Van Prooijen, J.-W. (in press). Occurrence of rating distortions and ratees’ fairness perceptions per rater’s mood and affect. Career Development International.

Strelan, P., Difiore, C., & Van Prooijen, J.-W. (in press). The empowering effect of punishment on forgiveness. European Journal of Social Psychology.

Van Prooijen, J.-W., & Krouwel, A. P. M. (in press). Extreme political beliefs predict dogmatic intolerance. Social Psychological and Personality Science.  Abstract

Van Gelder, J.-L., Nee, C., Otte, M., Demetriou, A., Sintemaartensdijk, I., & Van Prooijen, J.-W. (in press). Virtual burglary: Exploring the potential of virtual reality to study burglary in action. Journal of Research in Crime and Delinquency.

Van Bommel, M., Van Prooijen, J.-W., Elffers, H., & Van Lange, P. A. M. (in press). The lonely bystander: Social exclusion leads to less helping, even in the presence of others. Social Influence.

Strelan, P., & Van Prooijen, J.-W. (in press). Tough love: The behavior control motive facilitates forgiveness in valued relationships. Personal Relationships.  Abstract

Van Prooijen, J.-W., & De Vries, R. E. (in press). Organizational conspiracy beliefs: Implications for leadership styles and employee outcomes. Journal of Business and Psychology.   Abstract  Read the article HERE (open access) 

Van Prooijen, J.-W., & Van Lange, P. A. M. (2016). Cheating, corruption, and concealment: An introduction to dishonesty. Chapter to appear in J.-W. Van Prooijen and P. A. M. Van Lange (Eds.), Cheating, corruption, and concealment: The roots of dishonesty (pp. 1-12). Cambridge, UK: Cambridge University Press.

Van Prooijen, J.-W. (2016). Sometimes inclusion breeds suspicion: Self-uncertainty and belongingness predict belief in conspiracy theories. European Journal of Social Psychology, 46, 267-279.  abstract

Beijers, J., van Prooijen, J.-W., & Bijleveld, C. (2016). ‘To marry a thief?’ Crime type as a deterrent to cohabitation. Journal of Experimental Criminology, 12, 159-165. Read the article HERE (open access)

Van Doesum, N. J., Van Prooijen, J.-W., Verburgh, L., & Van Lange, P. A. M. (2016). Social hostility in soccer and beyond. PloS ONE, 11, e0153577.  Read the article HERE (open access) 

Köbis, N., Van Prooijen, J.-W., Righetti, F., & Van Lange, P. A. M. (2016). Prospection in individual and interpersonal corruption dilemmas. Review of General Psychology, 20, 71-85Abstract

Ikramullah, M., Van Prooijen, J.-W., Iqbal, M. Z., & Ul-Hassan, F. (2016). Effectiveness of performance appraisal: Developing a conceptual framework using competing values approach. Personnel Review, 45, 334-352.

 Gollwitzer, M., & Van Prooijen, J.-W. (2016). Psychology of justice. In C. Sabbagh & M. Schmitt (Eds.), Handbook of Social Justice Theory and Research (pp. 61-82). New York, NY: Springer.

 Van Bommel, M., Van Prooijen, J.-W., Elffers, H., & Van Lange, P. A. M. (2016). Booze, bars, and bystander behavior: People who consumed alcohol help faster in the presence of others. Frontiers in Psychology, 7: 128. Read this article HERE (open access).

Van Prooijen, J.-W., & Acker, M. (2015). The influence of control on belief in conspiracy theories: Conceptual and applied extensions. Applied Cognitive Psychology, 29, 753-761.  abstract

Köbis, N., Van Prooijen, J.-W., Righetti, F., & Van Lange, P. A. M. (2015). “Who doesn’t?” The impact of descriptive norms on corruption. PloS ONE, 10, e0131830.  Read this article HERE

Van Prooijen, J.-W., & Krouwel, A. P. M. (2015). Mutual suspicion at the political extremes: How ideology predicts conspiracy beliefs. In M. Bilewicz, A. Cichocka, & W. Soral (Eds.), The Psychology of Conspiracy (pp. 79-98). Oxon, UK: Routledge.

Van Prooijen, J.-W., Krouwel, A. P. M., & Pollet, T. (2015). Political extremism predicts belief in conspiracy theories. Social Psychological and Personality Science, 6, 570-578  abstract

Van Prooijen, J.-W., Krouwel, A. P. M., Boiten, M., & Eendebak, L. (2015). Fear among the extremes: How political ideology predicts negative emotions and outgroup derogation. Personality and Social Psychology Bulletin, 41, 485-497.   abstract

Van Knippenberg, D., Van Prooijen, J.-W., & Sleebos, E. (2015). Beyond social exchange: Collectivism’s moderating role in the relationship between perceived organizational support and organizational citizenship behavior. European Journal of Work and Organizational Psychology, 24, 152-160.  abstract

Other news from Dr. van Prooijen's research group:

- On 28 September 2016, Niels van Doesum defended his PhD thesis entitled "Social Mindfulness" at the VU. Congratulations, Dr. Niels!

- On 1 September 2016, Mengchen Dong started as PhD student on a project on supernatural and conspiracy beliefs. She is funded by the China Scholarship Counsil (CSC). Her supervisors are Dr. van Prooijen and Prof. van Lange.

- Dr. van Prooijen started as President of the International Society for Justice Research (ISJR) at the ISJR conference in Canterbury, UK, 20-23 July 2016. His presidency will last until the next ISJR conference in 2018.

- On 1 July 2016, Vanja Ljujic started at the NSCR as a post-doc on the project of economic drivers of radicalization and terrorism. She will work together with Frank Weerman, Jan-Willem van Prooijen, and Veroni Eichelsheim.

- On 1 May 2016, Iris van Sintemaartensdijk, Msc, started as junior researcher on a project on virtual burglary at the NSCR and the VU. She is supervised by Dr. Jean-Louis van Gelder (NSCR), Dr. van Prooijen, and Prof. Paul van Lange (VU), and is being funded by the Dutch Ministry of Justice. 

- Together with various NSCR colleagues (Frank Weerman, Veroni Eichelsheim, and Catrien Bijleveld), Dr. van Prooijen was awarded an EU grant on the economic drivers of radicalization and terrorism in January 2016. The project is part of the larger Horizon2020 consortium 'PROTON'. 

- Since 1 January 2016, Dr. van Prooijen is teaching director of the Research Master in Social Psychology at VU Amsterdam.

- In December 2015, Dr. van Prooijen started as Associate Editor at Personality and Social Psychology Bulletin (PSPB). 

- In December 2015, Meta Zahro Aurelia started working with Dr. van Prooijen on her PhD. Her research is about the psychological and cultural underpinnings of corruption. 

- on August 15, 2015, The article by Van Prooijen and Acker (2015; Applied Cognitive Psychology) about control and conspiracy beliefs got featured in Time. Read the Time article online HERE.

- On 4 March 2015, Marco van Bommel successfully defended his PhD thesis entitled 'The reputable bystander: The role of reputation in activating or deactivating bystanders'. Congratulations, Dr. Marco!

- Read HERE a recent post of Dr. van Prooijen on the EUROPP blog about his article on conspiracy belief and political extremism (posted 24 February 2015).