• Józefczyk, Anna, University of Lodz, Łódź, Poland
• Kamble, Shanmukh, Department of Psychology, Karnatak University, Dharwad, India
• Karaś, Dominika, Institute of Psychology, Cardinal Stefan Wyszynski University in Warsaw, Warsaw, Poland
• Karg, Simon Tobias, Department of Political Science, Aarhus University, Aarhus, Denmark
• Keefer, Lucas A., University of Southern Mississippi, Hattiesburg, MS
• Keller, Matthias, University of Basel, Basel, Switzerland
• Kemmer, Jule Anna, Department of Psychology, Marburg University, Marburg, Germany
• Kende, Anna, ELTE Eötvös Loránd University, Budapest, Hungary
• Kende, Anna, Department of Social Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
• Kim, Inkuk, School of Psychology, Victoria University of Wellington, Wellington, New Zealand
• Klein, Olivier, Faculté des Sciences psychologiques et de l'Éducation, Université Libre de Bruxelles, Brussels, Belgium
• Knapton, Holly M., Lund University, Lund
• Knöchelmann, Larissa, Department of Psychology, Marburg University, Marburg, Germany; Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany
• Kobylińska, Dorota, University of Warsaw, Warsaw
• Kofta, Mirosław, University of Warsaw, Warsaw, Poland