Rrita Zejnullahi

Rrita Zejnullahi is a Clinical Assistant Professor of Biostatistics at the University of Illinois Chicago, with primary affiliation in the School of Public Health's Division of Epidemiology and Biostatistics, and a joint appointment in the College of Applied Health Sciences. She also serves as a Statistician in the Office of Research within the College of Applied Health Sciences.

Education: Ph.D. in Statistics from Northwestern University (2021).

Research focuses on statistical methodologies to support policy-making, including uncertainty quantification in predictive models, effect size estimation in experimental designs, and meta-analysis for small samples. Substantive applications include refugee population analyses, air quality data integration, sport epidemiology, aging mobility, mental health interventions, and physiological mechanisms in muscle blood flow.

Her recent publications address robust meta-analysis techniques and effect size calculations in ANCOVA and difference-in-differences designs. Active in open-source contributions, she maintains repositories on meta-analysis and statistical methods (e.g., RVE-Meta-analysis-SMD and Effect-sizes-ANCOVA-DiD-designs).