Ward Eiling
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MLMs vs. GEEs with Binary Outcomes

Master Thesis · Utrecht University

Thesis
Multilevel Models
GEE
Binary Data
Simulation Study
Comparing performance of multilevel models and generalized estimating equations across disaggregation methods for clustered longitudinal binary data.
Published

June 25, 2025

In collaboration with prof. dr. Ellen Hamaker and dr. Jeroen Mulder, I examined how within-person and between-person effects can be estimated in clustered longitudinal data with binary predictors and outcomes. We compared the performance of multilevel models (MLMs) and generalized estimating equations (GEEs) across different disaggregation methods. Our simulations show that the commonly used person-mean centering approach—often regarded as the gold standard—can lead to problematic results when applied in MLMs with binary outcomes.

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