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Ulitzsch, Esther

Esther Ulitzsch

Dr. phil., M.Sc. Psych.
Educational Measurement and Data Science


phone +49-(0)431-880-1704
address Olshausenstraße 62, D-24118 Kiel
room 31


2020 Doctorate in Psychology, Free University of Berlin
2016 Master‘s degree in Psychology, Free University of Berlin
2014 Bachelor‘s degree in Psychology, Humboldt University of Berlin
2009 - 2014 Studies in Psychology, Humboldt University of Berlin, Free University of Berlin, Moscow State University

Professional Activity

2020-present Research Scientist, IPN – Leibniz Institute for Science and Mathematics Education
2016 - 2020 Research Scientist and Doctoral Candidate, Methods and Evaluation/Quality Assurance, Department of Education and Psychology, Free University of Berlin

Research Interests

Item response modeling
Process data
Missing values

Current Projects

Using process data for understanding test-taking behavior in large-scale assessments

Selected Publications

Ulitzsch, E., Robitzsch, A., & Lüdtke, O. (2021). Alleviating estimation problems in small sample structural equation modeling - A comparison of constrained maximum likelihood, Bayesian estimation, and fixed reliability approaches. Psychological Methods. doi: 10.1037/met0000435
Ulitzsch, E. Pohl, S., Khorramdel, L., Kroehne, U., & von Davier, M. (2021). A response-time-based latent response mixture model for identifying and modeling careless and insufficient effort responding in survey data. Psychometrika. doi: 10.1007/s11336-021-09817-7
Ulitzsch, E., He, Q., & Pohl, S. (2021). Using sequence mining techniques for understanding incorrect behavioral patterns on interactive tasks. Journal of Educational and Behavioral Statistics, 47(1), 3-35. doi: : 10.3102/10769986211010467
Pohl, S., Ulitzsch, E. , & von Davier, M. (2021). Reframing rankings in educational assessment. Science, 372 (6540), 338-340. doi: 10.1126/science.abd3300
Ulitzsch, E., von Davier, M., & Pohl, S. (2019). A hierarchical latent response model for inferences about examinee engagement in terms of guessing and item-level nonresponse. British Journal of Mathematical and Statistical Psychology. doi: 10.1111/bmsp.12188