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Mendelian randomization: Old and new insights | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/penn-biostat-2021/3 Jun 2024: Search. Mendelian randomization: Old and new insights. Abstract. Mendelian randomization (MR) is a method for causal inference that utilizes the natural experiment in genetic inheritance. The idea of MR can be traced back to the dawn of modern -
Almost exact Mendelian randomization | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/publication/almost-exact-mr/3 Jun 2024: Search. Almost exact Mendelian randomization. Matt Tudball, George Davey Smith, Qingyuan Zhao. August 2022Type. 2024. Powered by the Academic theme forCite. -
Talks | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/3 Jun 2024: Search. Talks. 2024. Design: The Elusive Principle of Statistics. 2024-03-07 1:00 PM — 2:00 PM University of Oxford. 2024-02-13 2:00 PM — 3:00 PM University of East Anglia. 2024-02-08 2:00 PM — 3:00 PM London School of Economics and Political -
The randomization principle in causal inference: A modern look at…
https://www.statslab.cam.ac.uk/~qz280/talk/imperial-2022/3 Jun 2024: Search. The randomization principle in causal inference: A modern look at some old ideas. Abstract. Randomization is a fundamental principle in causal inference and was first proposed by R A Fisher about a century ago. Although randomization has now -
Two High-Profile Examples of Selection Bias | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/uw-csss-2022/3 Jun 2024: Search. Two High-Profile Examples of Selection Bias. Abstract. This talk will examine the selection bias that occurred in studying some most contentious problems. In the first case study, we will look at the estimation of the growth rate and -
Causal Inference with Observational Data: Common Designs and…
https://www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/3 Jun 2024: Search. Causal Inference with Observational Data: Common Designs and Statistical Methods (2023). Course description. Observational studies are non-interventional empirical investigations of causal effects and are playing an increasingly vital role -
Statistical Modelling (Part II, Michaelmas 2022) | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/3 Jun 2024: Search. Statistical Modelling (Part II, Michaelmas 2022). 2022-09-30. General information. This course consists of 16 lectures and 8 practical sessions. It complements the Part II Principles of Statistics, but takes a more applied perspective. -
Sensitivity Analysis | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/sensitivity-analysis/3 Jun 2024: Search. Sensitivity Analysis. A new approach to sensitivity analysis in linear SEMs using stochastic optimization and the $R2$-calculus. Sensitivity analysis is widely recognized as a critical step in an observational study but is seldom found in -
Causal mediation analysis for time-varying heritable risk factors…
https://www.statslab.cam.ac.uk/~qz280/publication/mr-lifecourse/3 Jun 2024: Search. Causal mediation analysis for time-varying heritable risk factors with Mendelian Randomization. Zixuan Wu, Ethan Lewis, Qingyuan Zhao, Jingshu Wang. February 2024Abstract. Understanding the causal pathogenic mechanisms of diseases is crucial -
Seeking a summer research intern (EXPIRED) | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/post/summer-intern-2021/3 Jun 2024: Search. Seeking a summer research intern (EXPIRED). 2021-01-29 2 min read. I am posting a summer research project that may be suitable for Cambridge Part II students (or senior undergraduate students from other universities). Cambridge students can -
What is a randomization test? | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/publication/single-crt/3 Jun 2024: Search. What is a randomization test? Yao Zhang, Qingyuan Zhao. March 2022Abstract. The meaning of randomization tests has become obscure in statistics education and practice over the last century. This article makes a fresh attempt at rectifying -
COVID-19 (project page) | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/project/covid-19/3 Jun 2024: Search. COVID-19 (project page). 2020-07-24. Publications. Small Data, Big Time—A retrospect of the first weeks of COVID-19. To be read before The Royal Statistical Society at the Society’s 2021 annual conference held in Manchester on Wednesday, -
A fun model to explain the surging popularity of Mendelian…
https://www.statslab.cam.ac.uk/~qz280/post/mr-vs-gwas-2021/3 Jun 2024: Search. A fun model to explain the surging popularity of Mendelian randomization. 2021-03-23 2 min read. I was preparing for my talk in EPFL’s statistics seminar today and discovered an interesting model. As many people know, the popularity of -
Sensitivity Analysis with the $R^2$-calculus | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/publication/r2-calculus/3 Jun 2024: Search. Sensitivity Analysis with the $R2$-calculus. Tobias Freidling, Qingyuan Zhao. January 2023R$-sensitivity contours for the lower end of the estimated partially identified region. Abstract. Causal inference necessarily relies upon untestable -
Randomization (project page) | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/project/randomization/3 Jun 2024: Search. Randomization (project page). 2022-04-22. A related page isRelated. Publications. Selective Randomization Inference for Adaptive Experiments. We apply ideas from post-selection inference to randomization tests for adaptive experiments. -
Sensitivity analysis for observational studies | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/yale-biostats-2020-2/3 Jun 2024: Search. Sensitivity analysis for observational studies. Abstract. Sensitivity analysis is widely recognized as a critical step in an observational study but is seldom found in applications. One reason for its underuse is the various forms of model, -
A unified analysis of regression adjustment in randomized experiments …
https://www.statslab.cam.ac.uk/~qz280/publication/regression-adjustment/3 Jun 2024: Search. A unified analysis of regression adjustment in randomized experiments. Katarzyna Reluga, Ting Ye, Qingyuan Zhao. October 2022Abstract. Regression adjustment is broadly applied in randomized trials under the premise that it usually improves -
How infectious was COVID-19 when it first circulated in Wuhan? |…
https://www.statslab.cam.ac.uk/~qz280/talk/corpus-masterclass-2022/3 Jun 2024: Search. How infectious was COVID-19 when it first circulated in Wuhan? Abstract. This is given to A-level students. Date. 2022-03-24 2:00 PM — 2:45 PM. Location. Corpus Christi College Masterclass in Mathematics. 2024. Powered by the Academic -
The Random-Cluster Model
www.statslab.cam.ac.uk/~grg/books/rcm.html23 Jul 2012: the complete text available for download. -
Multiple conditional randomization tests | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/mcp-2022/3 Jun 2024: Search. Multiple conditional randomization tests. Date. 2022-08-31 1:45 PM — 2:15 PM. Multiple Conference 2022. Location. Bremen, Germany. 2024. Powered by the Academic theme forCite.
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