Biases in favor of culturally prevalent social ingroups are ubiquitous, but random assignment to arbitrary experimentally created social groups is also sufficient to create ingroup biases (i.e., the minimal group effect; MGE). The extent to which ingroup bias arises from specific social contexts versus more general psychological tendencies remains unclear. This registered report focuses on three questions. First, how culturally prevalent is the MGE? Second, how do critical cultural and individual factors moderate its strength? Third, does the MGE meaningfully relate to culturally salient real-world ingroup biases? We compare the MGE to bias in favor of a family member (first cousin) and a national ingroup member. We propose to recruit a sample of > 200 participants in each of > 50 nations to examine these questions and advance our understanding of the psychological foundations and cultural prevalence of ingroup bias.
Yang, Xin; Schulz, Jonathan Friedemann; Schmidt, Kathleen; Kenny, Adam R; Pfuhl, Gerit; Gjoneska, Biljana; Dalgar, Ilker; Lewis, Savannah C; Exner, Anna; Buchanan, Erin Michelle; Lander, Karen; Becker, Maja; Du, Hongfei; Johri, Akshay; Selcuk, Emre; Gallyamova, Albina; Calluso, Cinzia; Reggev, Niv; Vranka, Marek Albert; Acar, Oguz A.; Palma, Tomás A; Kocur, Miroslaw; Oliveros, Juan C.; Montefinese, Maria; Wilton, Leigh Solano; Wilton, Leigh Solano; Zdybek, Przemysław; Ferreira, Paulo Rs; Pfattheicher, Stefan; Akkas, Handan; Autin, Frederique; Sorokowska, Agnieszka; Janssen, Steve M. J.; March, David Scott; Young, Danielle Magan; Valentova, Jaroslava Varella; Tasbas, Esra H. Oguz; Bukun, Mehmet Fatih; Giammusso, Isabella; Brandt, Mark John; Couto, Cleno; Simon, Derek Alexander; Cutler, Jo; Prokosch, Marjorie L.; Sjåstad, Hallgeir; Manunta, Efisio; Whyte, Stephen; Marsh, Abigail; Papadatou-Pastou, Marietta; Jaeger, Bastian; Morvinski, Coby; Primbs, Maximilian; Akil, Atakan M.; Kapoor, Hansika; Barzykowski, Krystian; Ghai, Sakshi; Moreau, David; Seehuus, Martin; Kowal, Marta; Evans, Thomas Rhys; Hill, Kimberley; Calvillo, Dustin P; Wiechert, Sera; Afhami, Reza; Hoyer, Karlijn; Korbmacher, Max; Elbaek, Christian T.; Alsuhaibani, Zainab; Pronizius, Ekaterina; Cui, Qianqain; Cundiff, Jenny; Taghipanahi, Alireza; Bjornsdottir, R. Thora; Baskin, Ernest; Ergiyen, Tolga; Metin-Orta, Irem; Collins, W. Matthew; Bø, Simen; Marinucci, Marco; Baker, Bradley James; Özdoğru, Asil Ali; Anne, Michele; Standage, Martyn; Tullett, Alexa Mary; Milfont, Taciano L; Flynn, Francis; Zidkova, Radka; Ruiz-Fernandez, Susana; Sachs, Tobias; Bilancini, Ennio; Verheyen, Steven; Massoni, Sébastien; Wen, Jiahui; Camargo, Andrés; Wang, Yilin Andre; Zhou, Steven; Peetz, Hannah Katharina; Grigoryev, Dmitry; Ghasemi, Omid; Westgate, Erin Corwin; Sutherland, Clare; Boucher, Leanne; Grigoryan, Lusine; Paltoglou, Aspa; Al-Hoorie, Ali H.; Sacco, Donald F.; Thomas, Andrew G.; Haeffel, Gerald; Davis, William E.; Mandalaywala, Tara M; Cruz, Francisco; Ross, Robert M; Jiang, Xiaoming; Studzinska, Anna; Dumbravă, Andrei; Misiak, Michał; Tran, Ulrich S.; Felisberti, Fatima Maria; Nagy, Tamas; Gunaydin, Gul; Miranda, Jacob Francisco; Behnke, Maciej; Akin, Karen; Berkessel, Jana; Johnson, David Charles; Wu, Yang; Godbersen, Hendrik; Edlund, John; Gourdon-Kanhukamwe, Amélie; Martin, Doug; Norman, Jasmine B; Batres, Carlota; Kutuk, Bahtim; Szumowska, Ewa; Storage, Daniel; Bouguettaya, Ayoub; Lins, Samuel; Voracek, Martin; Tavel, Petr; Trémolière, Bastien; Cyrus-Lai, Wilson; Alzahawi, Shilaan; Anderson, Leif Douglas; Röer, Jan Philipp; Malinakova, Klara; Karababa, Alper; Walczak, Radoslaw B.; Ribeiro, Gianni; Sarı, Erkin; Pypno-Blajda, Katarzyna; Paruzel-Czachura, Mariola; Travaglino, Giovanni A.; Neta, Maital; Vaidis, David C.; Lu, Jackson G.; Camgöz, Selin Metin; Lockwood, Patricia; Mitkidis, Panagiotis; Lin, Wenzheng; Rathje, Steve; Van Lent, Tjits; Greijdanus, Hedy; Faure, Ruddy; Lamm, Claus; Brick, Cameron; Zhao, Xian; Aquino, Sibele Dias; Ulloa Fulgeri, Jose Luis; Walker, Bradley; Malecki, W. P.; Lou, Nigel Mantou; Pizziol, Veronica; Kuzminska, Anna O.; Schepisi, Michael; Adıgüzel, Arca; Karadeniz, Gizem; Yücel, Emine; Isloi, Chris; Chwiłkowska, Patrycja; Yu, Zhaoliang; Fay, Nicolas; Papaioannou, Kostas; Peker, Mhmet; Huang, Guanxiong; El-Haddad, Rita W.; Verschuere, Bruno; Meier, Zdenek; Vaughn, Leigh Ann; Albayrak-Aydemir, Nihan; Stieger, Stefan; Çoksan, Sami; Bijlstra, Gijsbert; Alves, Sara Gouveia; Hartanto, Andree; Mallik, Peter Robert; Jami, Waleed; Chen, Rong; Fellnhofer, Katharina; Marcu, Gabriela Mariana; Batalha, Luisa; Kocalar, Halil Emre; Vieira, Luc; Gleibs, Ilka Helene; Sharifian, Mohammadhasan; Hadjisolomou, Stavros P.; Riva, Paolo; Sirota, Miroslav; Novák, Lukas; Sorokowski, Piotr; Li, Yansong; Elsherif, Mahmoud Medhat; Carvalho, Catarina; Lima, Tiago Jessé Souza; Baker, Aaron; Ishii, Tatsunori; Mifune, Nobuhiro; Miura, Asako; Ohtsubo, Yohsuke; Takahashi, Ryu; Szala, Anna; Wolfe, Kelly; Özdemir, Fatih; Komyaginskaya, Elizaveta; Wu, Qy; Boncinelli, Leonardo; Lin, Jing; Gupta, Rashmi; Vazirian, Mohammad Hossein; Hajighasemi, Mohammadhesam; Sepehri, Amir; Peters, Kim Olivia; Emery, Cécile; Collis, Hannah; Henningsen, Levke; Aglioti, Salvatore Maria; Mirisola, Alberto; Manríquez-Robles, Diego; Rivera, Maria Jose Baeza; Salazar-Fernández, Camila; Paydarfard, Saeed; Katzir, Maayan; Dorfman, Anna; Hadar, Ram; Butt, Muhammad Mussaffa; Jia, Lile; Chua, Khai Qing; Ismail, Ismaharif; Willinger, David; Siebenhandl, Angelique; Kaminski, Gwenael; Bennett, Tia; Kohl, Amelia; Stevens, Laura; Flowe, Heather D.; Colloff, Melissa Fay; Scott, Kyra; Wagner, Kirstin; Ingham, Madeleine; Fabbri, Marco; Limata, Plinio; Smalarz, Laura; Eerdmans, Rose; Branas-Garza, Pablo; Gaviria, Adriana; Espín, Antonio M.; Kovářík, Jaromír; Benito-Ostolaza, Juan M.; Galang, Roberto Martin Nolan; Denzon, Eduardo Ezekiel; Otálora, Yenny; Taborda-Osorio, Hernando; Aminnuddin, Nur Amali; Kaça, Gülin; Boga, Merve; Malysheva, Daria; Balim, Sercan; Bürhan, Pınar; Bilger, Deniz; Liu, Lei; Kruse, Elliott Tyler; Solak, Çağlar; Akpınar, Burcu; Gül, Doğa; Muftareviç, Sümeyye; Deschrijver, Eliane; Zigdon, Ido; Krosch, Amy Rose; Ilchovska, Zlatomira; Rhoads, Shawn A; Kountouriotis, Georgios; Cairney, Maria; Daryani, Yalda; Tome, Natalia Lopez; Görzig, Anke; Ozcakan, Serkan; Freira, Lucia; Gökdağ, Ceren; Borinca, Islam; Spasovski, Ognen; Pillai, Raunak M; Chalik, Lisa; Moon, Chanki; Pauer, Shiva; Roberts, S. Craig; Friedrich, Scarlett; Takagi, Ryunosuke; Shannon, Connor; Lepine, Sara; Stallman, Jane Kathleen; Ram, Brian; Julliard, Yoann; Brun, Lise; Liuzza, Marco Tullio; Colacino, Cristiana; Parker, Laura Ruth; Finley, Sara; Mcfarland, Mason; Jantus, Candela I.; Navajas, Joaquin; Pavlov, Yuri G.; Kosachenko, Alexandra I.; Stephen, Ian D; Kök, Büşra; Hendrix, Joël; De Lange, Martijn; Khalid, Afreen; Szymański, Kacper; Aykutoğlu, Bülent; Van Bavel, Jay Joseph; Amormino, Paige; Elbistan, Gökhan; Justus, Brandon; Hsieh, Yi-Chen; Byrd, Nick; Porat, Roni; Glasserman, Dan; Barros, Marta; Quarenta, Joana; Dinić, Bojana M.; Ball, Olivia; Huynh, Alex; Dunham, Yarrow. (2026). Large-scale cross-societal examination of real- and minimal-group biases. https://pure.hw.ac.uk/ws/portalfiles/portal/139589354/PSA_008_PreprintUpdate.July.24.pdf
Large-scale cross-societal examination of real- and minimal-group biases
Calluso, CinziaData Curation
;
2026
Abstract
Biases in favor of culturally prevalent social ingroups are ubiquitous, but random assignment to arbitrary experimentally created social groups is also sufficient to create ingroup biases (i.e., the minimal group effect; MGE). The extent to which ingroup bias arises from specific social contexts versus more general psychological tendencies remains unclear. This registered report focuses on three questions. First, how culturally prevalent is the MGE? Second, how do critical cultural and individual factors moderate its strength? Third, does the MGE meaningfully relate to culturally salient real-world ingroup biases? We compare the MGE to bias in favor of a family member (first cousin) and a national ingroup member. We propose to recruit a sample of > 200 participants in each of > 50 nations to examine these questions and advance our understanding of the psychological foundations and cultural prevalence of ingroup bias.
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PSA_008_PreprintUpdate.July.24.pdf
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