Department of Sociology and Social Psychology (DSS)

Dr. Alexander Trinidad

Research focuses

• Crime Perceptions
• Juvenile Delinquency
• Victimization
• Geography of Crime
• Metascience

Curriculum vitae

• Since 04/2026: Research Associate, Department of Sociology and Social Psychology, University of Cologne.
• 10/2021- 03/2026: Research Associate and Lecturer, Department of Sociology and Social Psychology, University of Cologne.
• 02/2020 - 09/2021: Postdoctoral Researcher, Netherlands Institute for the Study of Crime and Law Enforcement (NSCR), Amsterdam
• 10/2019: PhD in Psychology, University of the Basque Country.
• 10/2016- 09/2017: Visiting Researcher, Max Planck Institute for the Study of Crime, Security, and Law, Freiburg
• 01/2016 - 10/2019: Predoctoral Researcher, Department of Social Psychology and Methodology of the Behavioral Sciences, University of the Basque Country
• 11/2015: Visiting Researcher, Institute of Criminology, Eberhard Karls University of Tübingen
• 06-10/2014 - 06-10/2015: Researcher, Institute of Criminology, University of the Basque Country
• 10/2014 - 08/2015: MSc in Forensic and Legal Psychology, University of Santiago de Compostela
• 12/2012- 07/2013: Research Assistant, Department of Social Psychology and Methodology of the Behavioral Sciences, University of the Basque Country
• 09/2009 - 07/2013: BSc in Psychology, University of the Basque Country

Selected publications

• Aczel, B., et al. Trinidad, A.,et al. (2026) Investigating the analytical robustness of the social and behavioral sciences. Nature
• Yastrebov, G., Trinidad, A., & Leopold, T. (2025). A Bounding Approach to Age-Period-Cohort Analysis: A Demonstration Using Public Crime Concerns in Germany. Journal of Quantitative Criminologyhttps://doi.org/10.1007/s10940-025-09633-7 . (Replication materialshere)
• Trinidad, A., Marcos, V., Montes, A. & Seijo, D. (2025). Negative Online Experiences, Worry, and Risk Perception Among Adolescents: Gender Differences and Implications for Cybercrime Awareness. Cyberpsychology, Behavior, and Social Networking,28(5).https://doi.org/10.1089/cyber.2024.0476 (Green Open Accesshere; Supplementary Files and Replication Materials here)
• Jauregui, C., Trinidad, A., & Vozmediano, L. (2025). Women's safety perception before and after the reconstruction of an urban area: A mixed method research. Violence Against Women. Online Firsthttps://doi.org/10.1177/10778012251362225. (Green Open Accesshere; Supplementary Fileshere)
• Young, L., Trinidad, A., & Azabal-Gallego, M. (2025). PTSD Prevalence in US Prisons: A Systematic Review and Meta-Analysis. The European Journal of Psychology Applied to Legal Context, 17(2), 73-87.https://doi.org/10.5093/ejpalc2025a7 (Replication materialshere).
• Vozmediano, L., Subiza-Pérez, M., San Juan, C., & Trinidad, A. (2025). Comparing Safety Perceptions and Active Mobility in Two Urban Settings: A Case Study. Security Journal, 38,(39).https://doi.org/10.1057/s41284-025-00499-9 . (Green Open Accesshere)
• Marteache, N. & Trinidad, A. (2024) "Theft victimization in urban settings: comparison of tourist and resident case profiles" Crime & Delinquency, 70(11), 3102-3126.https://doi.org/10.1177/00111287231163100 (Green Open Accesshere; Supplementary Files and Replication Materialshere)
• Trinidad, A., San Juan, C., & Vozmediano, L.(2022) Environmental conditions associated with youth delinquency events: A temporal, meteorological and contextual perspective. Environment and Behavior,54(3), 629-654.https://doi.org/10.1177/00139165211060521
• Trinidad, A., Vozmediano, L., Ocáriz, E., & San Juan, C. (2021). "Taking a walk on the wild side": Exploring residence-to-crime in juveniles. Crime & Delinquency, 67(1), 58-81.https://doi.org/10.1177/0011128720916141