Team

Decision Making Lab Group Photo


Prof. Dr. Adele Diederich


Dr. Annette Schomburg


Dr. Keivan Mallahi Karai

Research interests:
– applied probability theory cluster around dynamical systems
– stochastic modeling
– mathematical models of decision making.


Dr. Lena M. Wollschläger

When people choose between three or more alternatives, they do not have ready made preferences in their mind, but rather construct  them on the go. This process leads to systematic effects of the given choice set (the context) on the final choice, violating amongst others the principle of  independence of irrelevant alternatives. In my research, I try to formally model the preference construction process, taking into account  context effects like, for example, the similarity, attraction and compromise effects. The 2N-ary choice tree model not only explains many of  the known experimental results but also provides analytical solutions for choice probabilities and expected choice response times. My current goal is to apply the model to further choice situations and to empirically validate the results.


Marc Wyszynski

Marc joined the team as a research associate in 2014. His main research interests are:
– cognitive biases and debiasing in judgment and decision making
– experimental psychology
– quantitative and statistical research methods

Marc is part of the research project “Framing in der Bedarfsbestimmung: Daten und Modelle” of the interdisciplinary DFG-Research Group FOR2104 “Bedarfsgerechtigkeit und Verteilungsprozeduren”.

Latest Publications:
Wyszynski, M. (2020). Der Einfluss von Framing, Medienpriming, Vorurteilen und Debiasing auf die Bewertung eines Betrugs an der Solidargemeinschaft. (Doctoral dissertation, Jacobs University Bremen). DOI: 10.13140/RG.2.2.32289.56164
– Diederich, A., Wyszynski, M., & Traub, S. (2020). Need, frames, and time constraints in risky decision-making. Theory and Decision. DOI: 10.1007/s11238-020-09744-6


Past team members

Dr. Paulina Bogdanova

Dr. Simone Heil, Head of Division Central and South America, Alexander von Humboldt Foundation

Dr. Farid I. Kandil, Research Associate, Center for Experimental Medicine, Institute of Computational Neuroscience, University Medical Center Hamburg-Eppendorf

Dr. Julia Nannt, Postdoctoral Fellow, Universität Bielefeld

Dr. Marina Otten, Research Associate, Institute for Health Services Research in Dermatology and Nursing, University Medical Center Hamburg-Eppendorf

Dr. Stefan Rach, Head of Field Work Unit, Leibniz Institute for Prevention Research and Epidemiology – BIPS

Dr. Daniela Salzmann, Research Associate, Universitätsklinik für Viszeralchirurgie, Carl von Ossietzky Universität Oldenburg

Dr. Jeannette Winkelhage, Forschungsstelle Pflegeversicherung des GKV-Spitzenverbandes


Open positions

Unfortunately, we do not have any open positions right now.