• Chwiłkowska, Patrycja, Adam Mickiewicz University, Poznan, Poland
• Cichocka, Aleksandra, Nicolaus Copernicus University, Toruń, Poland; University of Kent, Canterbury, United Kingdom
• Cicognani, Elvira, Department of Psychology, University of Bologna, Bologna, Italy
• Cieciuch, Jan, Institute of Psychology, Cardinal Stefan Wyszynski University in Warsaw, Warsaw, Poland; University Research Priority Program Social Networks, University of Zurich, Zurich, Switzerland
• Cisłak, Aleksandra, SWPS University of Social Sciences and Humanities, Warsaw, Poland; Nicolaus Copernicus University, Toruń, Poland
• Cisłak, Aleksandra, Center for Research on Social Relations, SWPS University of Social Sciences and Humanities, Warsaw, Poland
• Cohrs, J. Christopher, Department of Psychology, Marburg University, Marburg, Germany
• Corneille, Olivier, Université catholique de Louvain, Louvain-la-Neuve
• Costa-Lopes, Rui, Institute of Social Sciences, University of Lisbon, Lisbon, Portugal
• Costello, Joseph T., School of Sport, Health and Exercise Science, University of Portsmouth, Portsmouth, United Kingdom
• Cucinella, Nicla, Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
• Curry, Oliver Scott, School of Anthropology and Museum Ethnography, University of Oxford, Oxford, United Kingdom; kindness.org, New York, NY, USA
• Curry, Oliver Scott, Research Affiliate, School of Anthropology and Museum Ethnography, University of Oxford, Oxford, United Kingdom
• Cwalina, Wojciech, Institute of Psychology, Maria Curie-Skłodowska University, Lublin, Poland
• Cypryańska, Marzena, SWPS University of Social Sciences and Humanities, Warsaw, Poland