Northwestern Events Calendar


Epidemiology Seminar Series

When: Friday, January 15, 2021
11:00 AM - 12:00 PM Central

Where: Online

Audience: Faculty/Staff - Student - Post Docs/Docs - Graduate Students

Contact: Mercedes Munoz  

Group: Department of Preventive Medicine

Category: Academic


Yajuan Si, PhD

Research Assistant Professor
Survey Research Center
Institute for Social Research
University of Michigan, Ann Arbor


Presentation Title

Multilevel Regression and Poststratification: A Unified Framework for Survey Weighted Inference 



Real-life sample data are often unrepresentative due to selection bias and nonresponse. Classical design-based corrections rely on weighting to match the sample to the target population. However, volatile weights can result in unstable estimators. We have developed a unified framework for survey weighting through novel modifications of the multilevel regression and poststratification (MRP). This talk will present a guide to the creation of survey weights using the Fragile Family and Child Wellbeing study as an example, and the implementation of MRP in electronic health records to estimate community-level SAR-COV-2 infection rates. 


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