• Klussman, Kristine, Connection Lab, San Francisco, CA, USA
• Klymenko, Ivan, Psychology Department, Ukraine Sigmund Freud University, Kyiv, Ukraine
• Kokkinaki, Theano, Department of Psychology, University of Crete, Rethymnon, Greece
• Kolovelonis, Athanasios, Department of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
• Köppel, Maximilian, Department of Medical Oncology, National Center for Tumor Diseases, Heidelberg University Hospital, Heidelberg, Germany
• Korstanje, Maximiliano E., University of Moron Argentina
• Korstanje, Maximiliano E., University John F. Kennedy
• Koschmieder, Corinna, Department of Differential Psychology, University of Graz, Graz, Austria
• Kosonogov, Vladimir, Affective Psychophysiology Laboratory, Institute of Health Psychology, HSE University, Saint Petersburg, Russian Federation
• Kostoulas-Makrakis, Nelly
• Kostovičová, Lenka, Institute of Applied Psychology, Faculty of Social and Economic Sciences, Comenius University, Bratislava, Slovakia
• Kot, Paweł, Institute of Psychology, The John Paul II Catholic University of Lublin, Lublin, Poland
• Kotlyar, Igor, Faculty of Business and IT, University of Ontario Institute of Technology, Oshawa, Canada
• Koutra, Katerina, University of Crete, Rethymno, 74100, Greece
• Kovac, Velibor Bobo, University of Agder, Kristiansand
• Kováčová Holevová, Bibiána, Department of Psychology, Pavol Jozef Šafárik University, Košice, Slovakia
• Kovalchuk, Liliya Scafuri, Department of Psychology, University of Campania “Luigi Vanvitelli”, Caserta, Italy
• Kőváry, Zoltán, Institute of Psychology, University of Szeged
• Kowalski, Christopher Marcin, Management and Organizational Studies, Department of Psychology, Faculty of Social Science, University of Western Ontario, London, ON, Canada
• Koyuncu, Mustafa, Nevsehir University, Nevsehir, Turkey
• Kozlov, Mikhail D., Luisenklinik, Department of Psychology, Bad Duerrheim, Germany
• Kraaij, Vivian, Department of Psychology, Leiden University, Leiden, the Netherlands
• Krajina, Marijana, Department of Psychology, University of Mostar, Mostar, Bosnia and Herzegovina
• Krammer, Georg, Institute for Educational Sciences, University College of Teacher Education Styria, Graz, Austria
• Krampen, Günter, University of Trier, Trier Université du Luxembourg, Luxembourg
• Krampen, Günter, Leibniz Institute for Psychology Information
• Krampen, Günter, Department of Psychology, University of Trier, Trier, Germany; Université du Luxembourg, Luxembourg, Luxembourg
• Krasovska, Nataliya, European University Viadrina Frankfurt (Oder), Frankfurt, Germany
• Krouklidou, Theodora, Department of Economics, Aristotle University of Thessaloniki, Thessaloniki, Greece
• Kucirkova, Natalia, The Open University, UK
• Kuhl, Julius, Institute of Psychology, University of Osnabrueck, Osnabrueck, Germany
• Kuhn, Sara K., Department of Psychology, University of North Dakota, Grand Forks, ND, USA
• Kuindersma, Jennifer, The University of Western Ontario London, Ontario, Canada
• Kuiper, Nicholas A., The University of Western Ontario, London, Ontario, Canada
• Kuiper, Nicholas A., Department of Psychology, University of Western Ontario, London, Ontario, Canada
• Kuiper, Nicholas A., Department of Psychology, Westminster Hall, University of Western Ontario, London, Ontario, Canada
• Kuiper, Nicholas A., Department of Psychology, Westminster Hall, Western University, London, Ontario, Canada
• Kumar, Sanjay, Pant University of Technology & Agriculture
• Kumari, Santha, Associate Professor School of Management & Social Sciences, Thapar University
• Kupeli, Nuriye, Marie Curie Palliative Care Research Department, Division of Psychiatry, University College London, London, United Kingdom
• Kuqi, Dorentina, Faculty of Social and Psychological Sciences, Heimerer College, Prishtina, Kosovo
• Kurtović, Ana, Department of Psychology, Faculty of Humanties and Social Sciences, Osijek, Croatia
• Kush, Tulika, Research Scholar, Department of Psychology, Gurukul Kangri University, Haridwar
• Kushwaha, Govind Singh, Pant University of Technology & Agriculture
• Kuskova, Olga, Institute for Cognitive Neuroscience, HSE University, Moscow, Russian Federation
• Kuwik, Anna, Middlesex University
• Kwiatkowska, Maria Magdalena, Institute of Psychology, Cardinal Stefan Wyszyński University, Warsaw, Poland
• La Barbera, Francesco, Department of Political Sciences, University of Naples Federico II, Naples, Italy
• La Barbera, Francesco, Department of Political Science, University of Napoli “Federico II”, Naples, Italy
• La Barbera, Francesco, Department of Political Sciences, University of Naples Federico II, Naples, Italy (Italy)