Research focus
- Series: "Forschungsmethoden in den Sozialwissenschaften" and Sozialwissenschaftliche Forschungsmethoden http://sozialwissenschaftliche-forschungsmethoden.de
- Missing-Data Techniques
- Semiparametric estimation of multi-equation panel models
- Causal inference
- Sampling theory and survey statistics in psychological research
- DFG project "Robust and efficient multiple imputation of complex data sets".