Professur: Prof. Dr. Tobias Koch

seit April 2020
Universitätsprofessur für Psychologische Methodenlehre an der Friedrich-Schiller-Universität Jena

Januar 2019 bis März 2020
Lehrprofessur an der Psychologischen Hochschule Berlin

2015 bis 2019
Juniorprofessur an der Leuphana Universität Lüneburg

Februar 2015 bis September 2015
Juniorprofessur an der RWTH Aachen

Berlin 2013-2015
Wissenschaftlicher Mitarbeiter

Berlin, 2013
Promotion im Fach Psychologie

2004-2010
Studium im Fach Psychologie an der Freien Universität Berlin

•  Analyse von Paneldaten und intensiven Längsschnittdaten
•  Multimethodale Forschung (z.B. Multitrait-Multimethod-Analyse und Multirater-Analysen)
•  Psychometrie und Messtheorie
•  Bayes'sche Schätzmethoden
•  Kausale Inferenz
•  Mehrebenen- und Meta-Analysen in der Psychologie
•  Wearables und mobile Sensordaten

• Bee, R. M., & Koch, T. (2026). Predictive Model Evaluation in Bayesian Mixture and Hierarchical Models for Ordinal Data: A Teaching Evaluation Case Study. Journal of Educational and Behavioral Statistics, 0(0).
• Knitter, L. A., Schultze, M., & Koch, T. (2026). Optimizing the Short Dark Triad Scale Using an Ant Colony Optimization Algorithm. Assessment, 0(0).
• Bohn, M., Prein, J., Engicht, J., Haun, D., Gagarina, N., & Koch, T. (2025). PREVIC: An adaptive parent report measure of expressive vocabulary in children between 3 and 8 years of age. Behavior Research Methods, 57(3), 95. https://doi.org/10.3758/s13428-025-02615-4Externer LinkExterner Link
• Knitter, L. A., Hoffmann, J., Eid, M., & Koch, T. (2025). Measuring the dark triad: a meta-analytical SEM study of two prominent short scales. Frontiers in Psychology, 15. https://doi.org/10.3389/fpsyg.2024.1469970Externer LinkExterner Link
• Eid, M., Geiser, C., & Koch, T. (2025). Structural equation modeling of multiple rater data. New York: Guilford PressExterner LinkExterner Link.
• Knitter, L. A., Hoffmann, J., Eid, M., & Koch, T. (2025). Measuring the dark triad: a meta-analytical SEM study of two prominent short scales. Frontiers in Psychology, 15, 1469970.
• Wester, R. A., Koch, T., Münch, F., Driver, C., Lutz, W., & Rubel, J. (2025). In search of lost time: Discrete- versus continuous-time models of working alliance and symptom severity. Journal of Consulting and Clinical Psychology, 93(1), 27–39. https://doi.org/10.1037/ccp0000929Externer LinkExterner Link
• Koch, T., Jaehne, M. F., Riediger, M., Rauers, A., & Holtmann, J. (2025). Idiographic interrater reliability measures for intensive longitudinal multirater data. British Journal of Mathematical and Statistical Psychology, 00, 1–22. https://doi.org/10.1111/bmsp.70022Externer LinkExterner Link
• Muench, F.F., Koch, T. Testing measurement and structural invariance in latent mediation models – A comparison of IPCR and Bayesian MNLFA. Behav Res 57, 250 (2025). https://doi.org/10.3758/s13428-025-02781-5Externer LinkExterner LinkExterner Link 
• Koch, T., & Wendt, A. (2025). Theory Crises in Psychology – What Can We Learn From Structuralism? Zeitschrift Für Psychologie. Advance online publication.  https://doi.org/10.1027/2151-2604/a000600Externer Link
• Bloszies, C., & Koch, T. (2024). Assessing Heterogeneity of Correlation Matrices in Misspecified Meta-Analytic Structural Equation Models. Structural Equation Modeling: A Multidisciplinary Journal, 1–13. DOI: 10.1080/10705511.2024.2389400Externer Link
• Wester, R. A., Koch, T.,  Münch, F.,  Driver, C., Lutz, W., & Rubel, J. (in press). In Search of Lost Time. Discrete vs. Continuous Time Models of Working Alliance and Symptom Severity. Journal of Consulting and Clinical Psychology
• Koch, T., & Eid, M. (2024). Augmented bifactor models and bifactor-(S-1) models are identical: A comment on Zhang, Luo, Zhang, Sun & Zhang (2023). Structural Equation Modeling: A Multidisciplinary Journal. DOI: 10.1080/10705511.2024.2339387Externer Link
• Urban, M., Koch, T., & Rothermund, K. (in press). The Implicit Association Test and its Difficulty(ies): Introducing the Test Difficulty Concept to Increase the True-Score Variance and, Consequently, the Predictive Power of Implicit Association Tests. Journal of Personality and Social Psychology.
• Schmidt, B., Böhmer, J., Schnuerch, M., Koch, T., & Michelmann, S. (2024). Post-hypnotic suggestion improves confidence and speed of memory access with long-lasting effects. Acta Psychologica, 245, 104240. DOI: 10.1016/j.actpsy.2024.104240Externer Link
• Bohn, M., Prein, J., Koch, T., Bee, R. M., Delikaya, B., Haun, D., & Gagarina, N. (2023). oREV: An item response theory-based open receptive vocabulary task for 3- to 8-year-old children. Behavior Research Methods. DOI:10.3758/s13428-023-02169-3Externer Link
• Oeltjen, L., Koch, T., Holtmann, J., Münch, F. F., Eid, M., & Nussbeck, F. W. (2023). A general framework for the inclusion of time-varying and time-invariant covariates in latent state–trait models. Psychological Methods, 28(5).
• Friemelt, B., Bloszies, C., Ernst, M. S., Peikert, A., Brandmaier, A. M., & Koch, T. (2023). On the performance of different regularization methods in bifactor-(S-1) models with explanatory variables—Caveats, recommendations, and future directions. Structural Equation Modeling: A Multidisciplinary Journal, 30(4), 560-573.
• Eid, M., Koch, T., & Geiser, C. (2023). Multitrait–multimethod models. Handbook of structural equation modeling, 349-266.
• Bohn, J., Holtmann, J., Luhmann, M., Koch, T., & Eid, M. (2023). Consistency and specificity of attachments to parents, friends, and romantic Partners in Emerging Adulthood. Emerging Adulthood, 11(1), 58-73.
• Koch, T., Voelkle, M. C., & Driver, C. C. (2023). Analyzing longitudinal multirater data with individually varying time intervals. Structural Equation Modeling: A Multidisciplinary Journal, 30(1), 86-104.
• Bee, R. M., Koch, T., & Eid, M. (2023). A General Theorem and Proof for the Identification of Composed CFA Models. psychometrika, 88(4), 1334-1353.
• Jahnke, S., Koch, T., Goede, L. R., Schröder, C. P., Lehmann, L., & Beelmann, A. (2022). Legal cynicism, but not depression, mediates the link between adverse environmental factors and youth’s political violence support. Psychology, Crime & Law, 28(5), 470-488.
• Koch, T., Holtmann, J., Crayen, C., & Heekerens, J. (2021). Construction of informative priors for the application of CFA-MTMM models in small samples: A model-free approach. In Advanced Multitrait-Multimethod Analyses for the Behavioral and Social Sciences (pp. 129-153). Routledge.
• Eid, M., Holtmann, J., & Koch, T. (2021). Restricted correlated trait-correlated method models for analyzing multitrait-multimethod data. In Advanced Multitrait-Multimethod Analyses for the Behavioral and Social Sciences (pp. 28-50). Routledge.
• Bohn, J., Holtmann, J., Ulitzsch, E., Koch, T., Luhmann, M., & Eid, M. (2021). Analyzing stability and change in dyadic attachment: The multi-rater latent state-trait model with autoregressive effects. Frontiers in psychology, 12, 604526.
• Bohn, J., Holtmann, J., Luhmann, M., Koch, T., & Eid, M. (2020). Attachment to parents and well-being after high school graduation: a study using self-and parent ratings. Journal of Happiness Studies, 21(7), 2493-2525.
• Holtmann, J., Koch, T., Bohn, J., & Eid, M. (2020). Multimethod Assessement of Time-Stable and Time-Variable Interindividual Differences: Introduction of a New Multitrait-Multimethod Latent State-Trait IRT Model. European Journal of Psychological Assessment, 36(6), 1024-1043.
• Koch, T., Holtmann, J., Eid, M., & West, S. G. (2020). Analyzing longitudinal multirater data with changing and stable raters. Structural Equation Modeling: A Multidisciplinary Journal, 27(1), 73-87.
• Semmler-Busch, U., & Koch, T. (2020). Wie wirken sich Migrationshintergrund und sozioökonomischer Status auf die Beurteilung nicht-kognitiver Kompetenzen aus?. Diversität und soziale Ungleichheit: Herausforderungen an die Integrationsleistung der Grundschule, 121-125.
• Koch, T., Holtmann, J., Bohn, J., & Eid, M. (2020). Multitrait-multimethod analysis. Encyclopedia of personality and individual differences, 3034-3056.
• Koch, T., Eid, M., & Lochner, K. (2018). Multitrait-Multimethod-Analysis: The Psychometric Foundation of CFA-MTMM Models. In P. Irwing, T. Booth & D. Hughes (Eds.), The Wiley Handbook of Psychometric Testing. A Multidisciplinary Reference on Survey, Scale and Test Development. Hoboken: John Wiley & Sons Ltd.
• Koch, T., Holtmann, J., Bohn, J., & Eid, M. (2018). Explaining General and Specific Factors in Longitudinal, Multimethod, and Bifactor Models: Some Caveats and Recommendations. Psychological Methods, 23(3), 505-523. DOI:10.1037/met0000146Externer Link
• Eid, M., Geiser, C., Koch, T., & Heene, M. (2017). Anomalous Results in G-Factor Models: Explanations and Alternatives. Psychological Methods, 22(3), 541-562. DOI:10.1037/met0000083Externer Link
• Koch, T., Schultze, M., Holtmann, J., Geiser, C., & Eid, M. (2017). A multimethod latent state-trait model for structurally different and interchangeable methods. Psychometrika, 82, 17-47.

• COSDIMH – Combining Surveys and Digital Tracking Data for Mental Health Research from a Computational Social Science Perspective
• SHERPA - Enhanced Assessment of Social and Health-Related Processes in Panel Studies through Event-Contingent Multimethod Experience Sampling Designs
• CaST - Definition und Schätzung kausaler Effekte in Latent-State-Trait-Modellen
• ABeBi - Analyse von Beurteiler-(Methoden-)effekten in der empirischen Bildungsforschung
• DFG-Projekt: Entwicklung von Mischverteilungs-Item-Response Modellen zur Auswertung von Cross-Classified Multirater Daten und deren Anwendung in der Lehrevaluationsforschung
• THInKI - Verbundprojekt: Thüringer Hochschulinitiative für KI im Studium

• Stellvertretender Direktor des Instituts für Psychologie
• Stellvertretender Präsident der European Association of Methodology
• Action Editor der Fachzeitschrift Advanced Methods and Practices in Psychological Science (AMPPS)