Publications
Does learning more about others impact liking them?: replication and extension Registered Report of Norton et al. (2007)’s lure of ambiguity
†Horsham, Z., †Haydock-Symonds, A., †Imada, H., Tai, H., Lau, W., Shum, T., Zeng, Y., Chow, H., & Feldman, G. (2025). Does learning more about others impact liking them?: Replication and extension Registered Report of Norton et al. (2007)’s Lure of Ambiguity. Royal Society Open Science, 12, 250441. https://doi.org/10.1098/rsos.250441 [† joint first authorship]
Ingroup favoritism in cooperation in a dynamic intergroup context: data from Israeli professional volleyball players
*Imada, H., Kopilovitch, R., & Zultan, R. (2025). Ingroup favoritism in cooperation in a dynamic intergroup context: data from Israeli professional volleyball players. Judgment and Decision Making, 20, e21. https://doi.org/10.1017/jdm.2025.9
The evaluation of negative gossipers: testing the role of group membership and social anxiety
†Patton, B., & *Imada, H. (2025). The evaluation of negative gossipers: testing the role of group membership and social anxiety. Cogent Psychology, 12(1), 2489219. https://doi.org/10.1080/23311908.2025.2489219 [† Year 3 student]
Belief in a just world for the self and others, Karma, system justification, and well-being during COVID-19 pandemic: evidence from 15 Asian nations
*Chobthamkit, P., Sutton, R. M., English, A. S., Ashraf, F., Cayubit, R. F. O., Chaleeraktrakoon, T., … Imada, H., … Yusoff, A. M. (2025). Belief in a just world for the self and others, Karma, system justification, and well-being during COVID-19 pandemic: Evidence from 15 Asian nations. Asian Journal of Social Psychology, 28(1), e12667. https://doi.org/10.1111/ajsp.12667
State responsiveness, collective efficacy, and threat perception: catalyst and complacency effects in opposition to crime across eight countries
*Moon, C., Travaglino, G. A., Mirisola, A., Burgmer, P., Imada, H., Giammusso, I., D’Ottone Campana, S. A., Ozeki, M., & Nawata, K. (2025). State responsiveness, collective efficacy, and threat perception: catalyst and complacency effects in opposition to crime across eight countries. British Journal of Social Psychology, 64(1), e12832. https://doi.org/10.1111/bjso.12832
The psychology of criminal authority: introducing the legitimacy of secret power scale
*Travaglino, G. A., Mirisola, A., Moon, C., Burgmer, P., Imada, H., Giammusso, I., D’Ottone, S. C., … Abrams, D. (2025). The psychology of criminal authority: introducing the legitimacy of secret power scale. Group Processes and Intergroup Relations, 28(3), 477-503. https://doi.org/10.1177/13684302241290935
The relative effectiveness of positive and negative gossip in promoting prosocial giving: the examination of the valence of gossip content and reputational consequences
*Imada, H. (in press). The relative effectiveness of positive and negative gossip in promoting prosocial giving: the examination of the valence of gossip content and reputational consequences. Japanese Psychological Research. https://doi.org/10.1111/jpr.12473
In-group binding moral values and reactive behavioral immune responses
*Imada, H., Li, Y., Mifune, N., & Ohira, H. (2024). In-group binding moral values and reactive behavioral immune responses Current Psychology, 43(46), 35471-35477. https://doi.org/10.1007/s12144-024-07023-z
A tale of two competing theories on ingroup favouritism
*Imada, H. (2024). A tale of two competing theories on ingroup favouritism. Nature Reviews Psychology, 3(11), 727-727. https://doi.org/10.1038/s44159-024-00371-4
Cooperation and crossed categorization in a minimal group context: testing the bounded generalized reciprocity and social identity accounts
*Imada, H., Ito, A., Hopthrow, T., Abrams, D., Willcox, K., Yansen, D., & Rumble, A. (2024). Cooperation and crossed categorization in a minimal group context: testing the bounded generalized reciprocity and social identity accounts. Comprehensive Results in Social Psychology.https://doi.org/10.1080/23743603.2024.2388345
Group-bounded indirect reciprocity and intergroup gossip
*Imada, H., Mifune, N., & Zibell, H. (2024). Group-bounded indirect reciprocity and intergroup gossip. Journal of Experimental Social Psychology, 115, 104657. https://doi.org/10.1016/j.jesp.2024.104657
Intergroup cooperation in the United States and Japan: revisiting Yuki’s (2003) theory on the cultural difference in the conceptualization of group boundaries
*Imada, H., Tsudaka, G., Mifune, N., Mizuno, K., Schug, J., & Kusano, K. (2024). Intergroup cooperation in the United States and Japan: revisiting Yuki’s (2003) theory on the cultural difference in the conceptualization of group boundaries. Current Research in Ecological and Social Psychology, 7, 100200. https://doi.org/10.1016/j.cresp.2024.100200
Psychological mechanisms underlying in-group favouritism in cooperation: revisiting the reputation management and expectation hypotheses
*Imada, H., Mifune, N., Shimizu, H. Psychological mechanisms underlying in-group favouritism in cooperation: revisiting the reputation management and expectation hypotheses (2024). Group Processes & Intergroup Relations, 27(8). https://doi.org/10.1177/13684302241239860
Anger and disgust shape judgments of social sanctions across cultures, especially in high individual autonomy societies
*Andersson, P. A., Vartanova, I., Vastfjall, D., Tinghog, G., Wu, J., Akoita, C. S., Aldashev, A., … Imada, H., … Eriksson, K. Anger and disgust shape judgments of social sanctions across cultures, especially in high individual autonomy societies (2024). Scientific Reports, 14(1), 5591. https://doi.org/10.1038/s41598-024-55815-x
Changes in social norms during the early stages of the COVID-19 pandemic across 43 countries
*Andrighetto, G., Szekely, A., Guido, A., Gelfand, M., Abernathy, J., Arikan, G., Aycan, Z., Bankar, S., Blumen, S., … Imada, H., … Eriksson, K. (2024) Changes in social norms during the early stages of the COVID-19 pandemic across 43 countries. Nature Communications, 15(1). https://doi.org/10.1038/s41467-024-44999-5
‘We need community’: bridging the path to distance from crime with community football
*Newson, M., Peitz, L., Gitsham, H., Imada, H., & Abrams, D. (2024) ‘We need community’: bridging the path to distance from crime with community football. Journal of Community & Applied Social Psychology, 34(1), e2757. https://doi.org/10.1002/casp.2757
Experimental evidence suggests intergroup relations are, by default, neutral rather than aggressive
Imada, H., & *Mifune, N. (2024). Experimental evidence suggests intergroup relations are, by default, neutral rather than aggressive. Behavioral and Brain Sciences, 47, e13. https://doi.org/10.1017/S0140525X23002728
On the trajectory of discrimination: a meta-analysis and forecasting survey capturing 44 years of field experiments on gender and hiring decisions
*Schaerer, M., du Plessis, C., Nguyen, M. H. B., van Aert, R. C. M., Tiokhin, L., Lakens, D., Giulia Clemente, E., Pfeiffer, T., Dreber, A., Johannesson, M., Clark, Gender Audits Forecasting Collaboration, C. J., & Luis Uhlmann, E. (2023). On the trajectory of discrimination: a meta-analysis and forecasting survey capturing 44 years of field experiments on gender and hiring decisions. Organizational Behavior and Human Decision Processes, 179, 104280.https://doi.org/10.1016/j.obhdp.2023.104280 [Member of gender audits forecasting collaboration]
Dynamic indirect reciprocity: when is indirect reciprocity bounded by group membership?
Imada, H., Romano, A., & *Mifune, N. (2023). Dynamic indirect reciprocity: when is indirect reciprocity bounded by group membership? Evolution and Human Behavior, . 44(4), 373-383. https://doi.org/10.1016/j.evolhumbehav.2023.05.002
An apology With a tiny monetary compensation is no more effective than a verbal apology alone
*Imada, H., Yamamoto, A., & Tsudaka, G. (2023). An apology With a tiny monetary compensation is no more effective than a verbal apology alone. Letters on Evolutionary Behavioral Science. 14(1), 32-36. https://doi.org/10.5178/lebs.2023.106
Does the sense of power influence reputational concern? Tests with episodic and semantic power priming
*Imada, H., Hopthrow, T., & Zibell, H. (2023). Does the sense of power influence reputational concern? Tests with episodic and semantic power priming. Social Psychological Bulletin. 119(30)e2120377119. https://doi.org/10.32872/spb.7779
Does COVID-19 threat relate to intergroup attitudes? A test in the U.K.
Imada, H., *Lalot, F., & Abrams, D. (2024). Does COVID-19 threat relate to intergroup attitudes? A test in the U.K. Evolutionary Behavioral Sciences, 18(2), 192–199. https://doi.org/10.1037/ebs0000311
Examining the context sensitivity of research findings from archival data
Delios, A., Clemente, E., Wu, T., Tan, H., Wang, Y., Gordon, M., Viganola, D., Chen, Z., Dreber, A., Johannesson, M., Pfeiffer, T., Generalizability Tests Forecasting Collaboration, & Uhlmann, E.L. (2022). Examining the context sensitivity of research findings from archival data. Proceedings of the National Academy of Sciences. 119(30)e2120377119. https://doi.org/10.1073/pnas.2120377119 [Member of forecasting collaboration]
Gossip about in-group and out-group norm deviations
*Imada, H., Rullo, M., Hopthrow, T., Van de Vyver, J., & Zagefka, H. (2022). Gossip about in-group and out-group norm deviations. Comprehensive Results in Social Psychology. 6(1-3), 113-133. https://doi.org/10.1080/23743603.2022.2090327
Beyond reciprocity: forgiveness, generosity, and punishment in continuing dyadic interactions
*Rumble, A. C., Willcox, K., Imada, H., & Yansen, D. (2022). Beyond reciprocity: forgiveness, generosity, and punishment in continuing dyadic interactions. Journal of Theoretical Social Psychology, 2022, e7259257. https://doi.org/10.1155/2022/7259257
Rewarding more is better for soliciting help, yet more so for cash than for goods: revisiting and reframing the tale of two markets with replications and extensions of Heyman and Ariely (2004)
†Imada, H., †Fei Chan, W., †Ki Ng, Y., †Hing Man, L., †Sze Wong, M., Ley Cheng, B., *Feldman, G., Kong, H., & Kong SAR, H. (2022). Rewarding more is better for soliciting help, yet more so for cash than for goods: revisiting and reframing the tale of two markets with replications and extensions of Heyman and Ariely (2004). Collabra: Psychology, 8(1), 2022. https://doi.org/10.1525/COLLABRA.32572 [† joint first authorship]
Pathogen threat and in-group cooperation
Imada, H., & *Mifune, N. (2021). Pathogen threat and in-group cooperation. Frontiers in Psychology, 12, 678188. https://doi.org/10.3389/fpsyg.2021.678188
Intergroup discrimination in cooperation among moral and non-moral groups
*Imada, H., Codd, D., & Liu, D. (2021). Intergroup discrimination in cooperation among moral and non-moral groups. Letters on Evolutionary Behavioral Science, 12(1), 28-33. https://doi.org/10.5178/LEBS.2021.86
Cleaning up our acts: psychological interventions to reduce engine idling and improve air quality
*Abrams, D., Lalot, F., Hopthrow, T., Templeton, A., Steeden, B., Özkeçeci, H., Imada, H., Warbis, S., Sandiford, D., Meleady, R., Fell, E., Abrams, Z., Abrams, A., Ngan, X. Q., Celina, S., Tanyeri, A., Gammon, M., Abrams, B., Fischer, L., . Peckham, S. (2021). Cleaning up our acts: psychological interventions to reduce engine idling and improve air quality. Journal of Environmental Psychology, 74, 101587. https://doi.org/10.1016/j.jenvp.2021.101587
A creative destruction approach to replication: Implicit work and sex morality across cultures
*Tierney, W., Hardy, J., Ebersole, C. R., Viganola, D., Clemente, E. G., Gordon, M., Hoogeveen, S., Haaf, J., Dreber, A., Johannesson, M., Pfeiffer, T., Huang, J. L., Vaughn, L. A., DeMarree, K., Igou, E. R., Chapman, H., Gantman, A., Vanaman, M., Wylie, J., . Uhlmann, E. L. (2021). A creative destruction approach to replication: Implicit work and sex morality across cultures. Journal of Experimental Social Psychology, 93, 104060. https://doi.org/10.1016/j.jesp.2020.104060 [Member of forecasting collaboration]
Perceptions of the appropriate response to norm violation in 57 societies
*Eriksson, K., Strimling, P., Gelfand, M., Wu, J., Abernathy, J., Akotia, C. S., Aldashev, A., Andersson, P. A., Andrighetto, G., Anum, A., Arikan, G., Aycan, Z., Bagherian, F., Barrera, D., Basnight-Brown, D., Batkeyev, B., Belaus, A., Berezina, E., Björnstjerna, M., . Imada. H., . Van Lange, P. A. M. (2021). Perceptions of the appropriate response to norm violation in 57 societies. Nature Communications, 12(1), 1481. https://doi.org/10.1038/s41467-021-21602-9
Alcohol consumption and group decision making
Imada, H., Hopthrow, T., & Abrams, D. (2021). Alcohol consumption and group decision making. In D. Frings and I. P. Albery (Ed.). The Handbook of Alcohol Use and Abuse: Understanding from Synapse to Society. Elsevier Academic Press. https://doi.org/10.1016/B978-0-12-816720-5.00009-8
The role of positive and negative gossip in promoting prosocial behavior
*Imada, H., Hopthrow, T., & Abrams, D. (2021). The role of positive and negative gossip in promoting prosocial behavior. Evolutionary Behavioral Sciences, 15(3), 285-291. https://doi.org/10.1037/EBS0000218
Preference for anonymous giving
*Imada, H. (2020). Preference for anonymous giving. Letters on Evolutionary Behavioral Science, 11(1), 22-26. https://doi.org/10.5178/LEBS.2020.76
Can car engine idling be reduced using persuasive messages? Canterbury air and noise experiment 2018-2019
*Abrams, D., Hopthrow, T., Imada, H., Ozkececi, H., Lalot, F., & Templeton, A. (2019). Can car engine idling be reduced using persuasive messages? Canterbury air and noise experiment 2018-2019. Project report. University of Kent. doi:10.22024/unikent/01.02.74587.