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Dr. Sebastian Brandhorst

Dr. Sebastian Brandhorst

Since 2012, Dr. Sebastian Brandhorst has been researching safety-related deviations from the rules in high-risk organisations. This practice-oriented experimental research has been expanded over time to include aspects of organizational culture. In his teaching, practical research questions and challenges are addressed with cooperating organizations. After completing his doctorate at the Ruhr University Bochum in 2022, he worked as a psychological expert for nuclear facilities at the non-profit organization Gesellschaft für Anlagen- und Reaktorsicherheit (GRS, Institute for Plant and Reactor Safety) before returning to university teaching and applied research in winter semester 23/24.

Postal address:
University of Siegen
Faculty of Life Sciences - Department of Psychology
Professorship for Social and Economic Psychology
Adolf-Reichwein-Str. 2a
D-57076 Siegen

Research topics

  • Work psychology - causes of and influence on safety-related deviations from rules in high-risk organisations
  • Organisational psychology - analysis and development of safety culture in high-risk organisations
  • A&O psychology - resilience & agility in complex and dynamic socio-technical systems 

Publications (peer-reviewed)

Brandhorst, S., & Kluge, A. (2022). Incentive schemes increase risky behavior in a safety-critical working task: an experimental comparison in a simulated high-reliability organization. Safety, 8(1), 17.

Brandhorst, S., & Kluge, A. (2021). Unintended Detrimental Effects of the Combination of Several Safety Measures—When More Is Not Always More Effective. Safety, 7(2), 37.

Brandhorst, S., & Kluge, A. (2021). When the tension is rising: a simulation-based study on the effects of safety incentive programs and behavior-based safety management. Safety, 7(1), 9.

Brandhorst, S., & Kluge, A. (2018). The bomb crater effect under the influence of audit feedback: Now you see me, now you don’t. Safety science, 110, 449-456.

Brandhorst, S., & Kluge, A. (2016). The spectrum of safety-related rule violations: Development of a rule-related behavior typology. Journal of Cognitive Engineering and Decision Making, 10(2), 178-196.

von der Heyde, A., Brandhorst, S., & Kluge, A. (2015). The impact of safety audit timing and framing of the production outcomes on safety-related rule violations in a simulated production environment. Safety Science, 77, 205-213.

von der Heyde, A., Brandhorst, S., & Kluge, A. (2015). The impact of the accuracy of information about audit probabilities on safety-related rule violations and the bomb crater effect. Safety Science, 74, 160-171.

von der Heyde, A., Brandhorst, S., & Kluge, A. (2013, September). Safety related rule violations investigated experimentally: One can only comply with rules one remembers and the higher the fine, the more likely the “soft violations”. In Proceedings of the Human Factors and Ergonomics Society Annual Meeting (Vol. 57, No. 1, pp. 225-229). Sage CA: Los Angeles, CA: SAGE Publications.

Book contributions

Brandhorst, S., Kluge, A., (2019). Risikobewertung und arbeitsbezogene unsichere Handlungen im Kontext von Erfahrung und Alter. In M. Falkenstein, C. Kardys: Arbeit, Kognition und Alter: Wissenschaftliche Erkenntnisse für die Praxis. Kohlhammer Verlag.


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