Overview
Research interests
Information distortion, coherence-based reasoning, parallel-constraint satisfaction, intuition, open science, social decision-making, probabilistic reasoning, methods.
Education
Dr. phil., 2012
Rheinische Friedrich-Wilhelms-Universität Bonn
Dipl.-Psych., 2006
Ruprecht-Karls Universität Heidelberg
Publications
The full publication list is available on Google Scholar.
Projects
Coherence-based Reasoning
Coherence-based Processes in (Non-)Strategic Social Decision-Making
Started February 2025
DFG Research Grant · Marc Jekel
Coherence-Based Reasoning: Modelling Integration and Search of Sequentially Presented Information
Started February 2021, Ended 2025
DFG Research Grant · Marc Jekel
Meta-Science
Started February 2025
DFG Research Grant · Marc Jekel · META-REP (SPP 2317)
Replicating Failed Replications: A Validity-based Framework for Predicting Replication Success
Started February 2022
DFG Research Grant · Marc Jekel · META-REP (SPP 2317)
Apps
Parallel Constraint Satisfaction (PCS) Models
PCS Network Model of Decision Making
Simulation of the PCS network model of decision making.
PCS Network Model of Risky Choice
Simulation of the PCS network model of risky choice.
Sequential-iCodes
Model simulation.
Other Models
Cumulative Prospect Theory
Model simulation.
Random-walk model
Simple random-walk model.
Rescorla-Wagner Modell
Rescorla-Wagner model functions.
Weber-Fechner und Stevens Modell
Psychophysics functions.
Methods
Modeling for Everyone
Additional resource website for accessible computational modeling materials.
Multiple-Measure Maximum Likelihood Strategy Classification
Strategy classification app.
Interpretation von Testergebnissen
z-Skala, T-Skala, IQ-Skala, Reliabilität, Messfehler, Konfidenzintervall.
Open Science
Optional Stopping and Alpha-Error
Effect of optional stopping on alpha-error.
Power, p-value Distribution, Effect Size Distribution
Relation between effect size, p-value distribution, n, alpha-error, and power.
Teaching
Teaching Areas
University of Cologne
Attitude and attitude change; scientific method; sensation and perception; diagnostics for school teachers; social cognition, decision-making, introduction to social psychology (lecture), practicals.
FernUniversität in Hagen
Statistical analyses and open science; artificial neuronal networks in psychology; computational modeling of learning.
University of Göttingen
Test theory; cognitive modeling; item-response theory.
University of Bonn
Computer assisted data analysis; introduction to R; empirical-experimental practical; introduction to psychology; psychology of emotions.
Example Decks for Teaching
Contact
Marc Jekel
Universität zu Köln
Sozialpsychologie
Richard-Strauss-Str. 2
50931 Köln | Germany
📧 marc.jekel@uni-koeln.de