• Kuhn, Gustav, Goldsmith University, London, United Kingdom
• Kukowski, Charlotte, Department of Psychology, University of Zurich, Zurich, Switzerland
• Kukołowicz, Paula, Polish Economic Institute, Warsaw
• Kula, Agnieszka Maria, University of Warsaw, Warsaw
• Kulesza, Wojciech, University of Social Sciences and Humanities, Poznan
• Kulesza, Wojciech, Faculty of Psychology in Wroclaw, SWPS University of Social Sciences and Humanities, Wroclaw, Poland
• Kulesza, Wojciech, Centre for Research on Social Relations, Warsaw Faculty, SWPS University of Social Sciences and Humanities, Warsaw, Poland
• Kulesza, Wojciech, Faculty of Psychology, SWPS University, Warsaw, Poland
• Kulich, Clara, University of Geneva, Geneva, Switzerland
• Kulich, Clara, Faculty of Psychology and Educational Sciences, University of Geneva, Geneva, Switzerland
• Kłym-Guba, Maria, Institute of Psychology, Cardinal Stefan Wyszynski University in Warsaw, Warsaw, Poland
• Lajoie, Denis, School of Psychology, Université de Moncton, Moncton, Canada
• Lamarche, Veronica, Department of Psychology, University of Essex, Colchester, United Kingdom
• Langenstein, Sonja, Department of Psychology, Goethe University Frankfurt, Frankfurt, Germany
• Lesick, Tara L., Department of Psychology, UNC Greensboro, Grensboro, NC, USA