Here are some of our publications (Click text to download - if available):

Jonason, P. K., Czerwiński, S. K., Tobaldo, F., Ramos-Diaz, J., Adamovic, M., Adams, B. G., . . . Sedikides, C. (2022). Milieu effects on the Dark Triad traits and their sex differences in 49 countries. Personality and Individual Differences, 197, 111796. doi:

Żemojtel‐Piotrowska, M, Piotrowski, J, Sedikides, C, et al. Communal collective narcissism. J Pers. 2021; 00: 1– 19.

Nowak, B., Brzóska, P.,  Piotrowski, J.,  Sedikides, C.,  Żemojtel-Piotrowska, M., & Jonason, P., (2020). Adaptive and maladaptive behavior during the COVID-19 pandemic: The roles of Dark Triad traits, collective narcissism, and health beliefs. Personality and Individual Differences. 167. 110232. 10.1016/j.paid.2020.110232. 

Rogoza, R., Żemojtel-Piotrowska, M., Jonason, P. (2020). Structure of Dark Triad Dirty Dozen Across Eight World Regions. Assessment. 2020. doi: 10.1177/1073191120922611. 

Jonason, P., Żemojtel-Piotrowska, M., Piotrowski, J., et. al. (2020). Country‐Level Correlates of the Dark Triad Traits in 49 Countries. Journal of Personality. doi: 10.1111/jopy.12569. 

Piotrowski, J., Żemojtel-Piotrowska, M., Piedmont, R., & Baran, T. (2019). The Assessment of Spirituality and Religious Sentiments (ASPIRES) Scale: Examining a spiritual transcendence nomological net in Polish context. Psychology of Religion and Spirituality, 2019.

Różycka-Tran, J., Piotrowski, J. P., Żemojtel-Piotrowska, M., Jurek Pawełand Osin, E. N., Adams, B. G., Ardi, R., … Maltby, J. (2019). Belief in a zero-sum game and subjective well-being across 35 countries.

Current Psychology.

 -> Download​​

Piotrowski, J., Różycka‐Tran, J., Baran, T., & Żemojtel‐Piotrowska, M. (2019). Zero‐sum thinking as mediator of the relationship of national attitudes with (un)      willingness to host refugees in own country. International Journal of Psychology.

Żemojtel‐Piotrowska, M., Piotrowski, J. P., Osin, E. N., Cieciuch, J., Adams, B. G., Ardi, R., ... & de Clunie, G. T. (2018). The mental health continuum‐short form: The structure and application for cross‐cultural studies–A 38 nation study. Journal of clinical psychology, 74(6), 1034-1052.

Różycka-Tran, J., Jurek, P., Olech, M., Piotrowski, J., & Żemojtel-Piotrowska, M. (2018). A warrior society: data from 30 countries show that Belief in a Zero-Sum Game is related to military expenditure and low civil liberties. Frontiers in psychology, 9.  doi: 10.3389/fpsyg.2018.02645

Żemojtel‐Piotrowska, M., Piotrowski, J., Rogoza, R., Baran, T., Hitokoto, H., & Maltby, J. (2018). Cross‐cultural invariance of NPI‐13: Entitlement as culturally specific, leadership and grandiosity as culturally universal. International Journal of Psychology.

Rogoza, R., Truong Thi, K. H., Różycka‐Tran, J., Piotrowski, J., & Żemojtel‐Piotrowska, M. (2018). Psychometric properties of the MHC‐SF: An integration of the existing measurement approaches. Journal of clinical psychology, 74(10), 1742-1758.

Żemojtel‐Piotrowska, M. A., Piotrowski, J. P., & Maltby, J. (2017). Agentic and communal narcissism and satisfaction with life: The mediating role of psychological entitlement and self‐esteem. International Journal of Psychology, 52(5), 420-424. -> Download​​

Żemojtel-Piotrowska, M., Piotrowski, J. P., Cieciuch, J., Adams, B. G., Osin, E. N., Ardi, R., ... & Esteves, C. (2017). Measurement invariance of Personal Well-being Index (PWI-8) across 26 countries. Journal of Happiness Studies, 18(6), 1697-1711. doi: 10.1007/s10902-016-9795-0 -> Download​

Maltby, J., Day, L., Żemojtel-Piotrowska, M., Piotrowski, J., Hitokoto, H., Baran, T., ... & Flowe, H. D. (2016). An ecological systems model of trait resilience: Cross-cultural and clinical relevance. Personality and Individual Differences, 98, 96-101. -> Download

Różycka-Tran, J., Żemojtel-Piotrowska, M., Ha, K., & Thi, T. (2013). Wartości osobiste i kulturowe w ujęciu Shaloma Schwartza w kulturze polskiej i wietnamskiej. Psychologia Społeczna, 8(4). -> Download

Różycka-Tran, J., Jurek, P., Olech, M., Piotrowski, J., Żemojtel-Piotrowska, M. (2017). Measurement invariance of Belief in Life as Zero-Sum Game in 36 countries.International Journal of Psychology, online first.

doi: 10.1002/ijop.12470 -> Download