1. Department of Psychology, Humboldt University Berlin, Berlin, Germany
2. Institute of Psychological Sciences, University of Leeds, Leeds, UK
3. Department of Developmental, Personality and Social Psychology, Ghent University, Ghent, Belgium
4. Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium
5. School of Social and Behavioral Sciences, Tilburg University, Tilburg, The Netherlands
6. Department of Psychology, University of Heidelberg, Heidelberg, Germany
7. Max Planck Institute for Research on Collective Goods, Bonn, Germany
8. Department of Psychology, University of California at Riverside, Riverside, CA USA
9. Department of Psychology, University of Potsdam, Potsdam, Germany
10. Department of Psychology, University of Virginia, Charlottesville, VA USA
11. Department of Psychology, University of Milano-Bicocca, Milan, Italy
12. Department of Psychology, University of Illinois, Chicago, IL USA
13. Department of Psychology, University of Koblenz-Landau, Landau, Germany
14. Department of Psychology, Utrecht University, Utrecht, The Netherlands
15. Department of Psychology, University of Greifswald, Greifswald, Germany