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Pascal Kieslich

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I am a postdoctoral researcher with a doctorate in Psychology and a focus on methods and data science. Currently, I work at the University of Mannheim in the Experimental Psychology Lab and the Mannheim Center for European Social Research.

In my research, I investigate how people make decisions, how we can measure this process, and how we can use this knowledge to predict future decisions. I use lab and online experiments, process tracing methods and surveys to gather data, and a variety of statistical and machine learning methods to test theoretical predictions and develop practical interventions.

Beyond decision making research, I love building software in R and Python that enables other researchers to collect, analyze, and visualize data on their own.

As a statistical consultant, I frequently work with colleagues from other disciplines to help them translate their substantial questions into statistical ones and get the answers they need from their data. I also greatly enjoy teaching data analysis and programming classes to students, researchers, and practitioners with various backgrounds and skill levels.

Software development

readbulk: R package for reading and combining multiple data files

mousetrap: R package for processing, analyzing, clustering, and visualizing mouse-tracking data

mousetrap-os: Python package for implementing mouse-tracking in OpenSesame

psynteract-os: Python package for real-time interactive experiments in OpenSesame

Complete list of software and open-source code

Selected publications

Kieslich, P. J., Schoemann, M., Grage, T., Hepp, J., & Scherbaum, S. (2020). Design factors in mouse-tracking: What makes a difference? Behavior Research Methods, 52(1), 317-341. (PDF) (material, data, & analyses)

Kieslich, P. J., Henninger, F., Wulff, D. U., Haslbeck, J. M. B., & Schulte-Mecklenbeck, M. (2019). Mouse-tracking: A practical guide to implementation and analysis. In M. Schulte-Mecklenbeck, A. Kühberger, & J. G. Johnson (Eds.), A Handbook of Process Tracing Methods (pp. 111-130). New York: Routledge. (preprint) (software) (analyses)

Aczel, B., Szollosi, A., Palfi, B., Szaszi, B., & Kieslich, P. J. (2018). Is action execution part of the decision-making process? An investigation of the embodied choice hypothesis. Journal of Experimental Psychology: Learning, Memory, and Cognition, 44(6), 918-926. (data & analyses)

Heck, D. W., Erdfelder, E., & Kieslich, P. J. (2018). Generalized processing tree models: Jointly modeling discrete and continuous variables. Psychometrika, 83(4), 893–918. (software, data, & analyses)

Hepp, J., Störkel, L., Kieslich, P. J., Schmahl, C., & Niedtfeld, I. (2018). Negative evaluation of individuals with borderline personality disorder at zero acquaintance. Behaviour Research and Therapy, 111, 84-91. (data)

Bröder, A., Gräf, M., & Kieslich, P. J. (2017). Measuring the relative contributions of rule-based and exemplar-based processes in judgment: Validation of a simple model. Judgment and Decision Making, 12(5), 491-506. (PDF) (data) (code & simulations)

Butz, S., Kieslich, P. J., & Bless, H. (2017). Why are conservatives happier than liberals? Comparing different explanations based on system justification, multiple group membership, and positive adjustment. European Journal of Social Psychology, 47(3), 362-372.

Kieslich, P. J., & Henninger, F. (2017). Mousetrap: An integrated, open-source mouse-tracking package. Behavior Research Methods, 49(5), 1652-1667. (PDF) (software) (data & analyses)

Eidel, O., Neumann, J.-O., Burth, S., Kieslich, P. J., Jungk, C., … Radbruch, A. (2016). Automatic analysis of cellularity in Glioblastoma and correlation with ADC using trajectory analysis and automatic nuclei counting. PLOS ONE, 11(7), e0160250.

Radbruch, A., Weberling, L. D., Kieslich, P. J., Eidel, O., … Bendszus, M. (2015). Gadolinium retention in the dentate nucleus and globus pallidus is dependent on the class of contrast agent. Radiology, 275(3), 783-791.

Weberling, L. D., Kieslich, P. J., Kickingereder, P., Wick, W., Bendszus, M., Schlemmer, H.-P., & Radbruch, A. (2015). Increased signal intensity in the dentate nucleus on unenhanced T1-weighted images after Gadobenate Dimeglumine administration. Investigative Radiology, 50(11), 743-748.

Kieslich, P. J., & Hilbig, B. E. (2014). Cognitive conflict in social dilemmas: An analysis of response dynamics. Judgment and Decision Making, 9(6), 510-522. (PDF) (data) (analysis)

Complete list of publications