Dr. Jannik H. Orzek

Dr. Jannik H. Orzek

Data Scientist | Psychologist

Factworks

About

I am an analyst at Factworks in Berlin developing, implementing, and testing new statistical methods for quantitative social scientists.

My work centers around regularized structural equation models, which have become very popular in psychological research. They allow the fitting of larger models than previously to gain new insights into complex psychological processes. To make (regularized) structural equation models easily available, I have developed several open source R and C++ packages.

During my PhD, I was supported by the International Max Planck Research School on the Life Course.

Interests
  • Structural Equation Models
  • Regularization (e.g., lasso, scad)
  • Optimization
  • R, C++, Docker
Education

  • Dissertation, 2024

    Humboldt-Universität zu Berlin

  • M.Sc. Psychology, 2019

    Humboldt-Universität zu Berlin

  • B.Sc. Psychology, 2017

    Humboldt-Universität zu Berlin

Projects

mxsem
RLernplattform
lesstimate
regCtsem
lessSEM

Publications

Dr. Jannik H. Orzek, Manuel C. Voelkle, Manuel Arnold (2023). Striving for Sparsity: On Exact and Approximate Solutions in Regularized Structural Equation Models. Structural Equation Modeling: A Multidisciplinary Journal.

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Dr. Jannik H. Orzek, Manuel C. Voelkle (2023). Regularized continuous time structural equation models: A network perspective. Psychological Methods.

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