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On Sensitivity Value of Pair-Matched Observational Studies
https://www.statslab.cam.ac.uk/~qz280/publication/sensitivity-value/slides.pdf3 Jun 2024: Can test the sharpnull hypothesis by e.g. Wilcoxon’s signed rank test. ... I When Γ > 1: Rosenbaum obtained lower and upper bounds ofthe p-value of any signed score test. -
Machine Learning meets Biostatistics IIA crash course on Causal ...
https://www.statslab.cam.ac.uk/~qz280/talk/ccaim-summer-school-2022/slides.pdf3 Jun 2024: How do we test XJ XK | XL in DAG models? -
Small Data, Big Time—A retrospect of the first weeks of COVID-19
https://www.statslab.cam.ac.uk/~qz280/publication/covid-19-retrospect/paper.pdf3 Jun 2024: This means that evidence from theprevious commercial tests, which had already identified a SARS-like coronavirus a week earlier, could notbe relied on in the official investigations. ... No new cases were announced before January 17, because the local -
Practical: Randomization inference
https://www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/S1.pdf3 Jun 2024: Why?• How can you "invert" the randomization tests to obtain an interval estimator of the treatment. ... On the other hand, the randomization test is based on the randomization introduced by theexperimenter. -
SISCER Module 12 Lecture 1: Randomization inference
https://www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L1.pdf3 Jun 2024: It turns out that Fisher’s exact test is also valid for this problem. ... Example: Fisher's exact test. Example: Stepped-wedge design. Example: Matched observational studies. -
https://www.statslab.cam.ac.uk/~qz280/tag/fisher/index.xml
https://www.statslab.cam.ac.uk/~qz280/tag/fisher/index.xml3 Jun 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
BETS: The dangers of selection bias in early analyses ...
https://www.statslab.cam.ac.uk/~qz280/talk/ghent-2021/slides.pdf3 Jun 2024: False negative test: Her first test was negative. A few days later she wastested again and the result came back positive. ... The principle is to only include cases as Wuhan-exported that pass a “beyond areasonable doubt” test. -
SISCER Module 12 Lecture 6: Negative Controls and…
https://www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L6.pdf3 Jun 2024: 2020). Can labor market policies reduce deaths ofdespair? Journal of health economics, 74:102372. -
CAUSAL INFERENCE Part III / Michaelmas 2023Example Sheet 2 ...
https://www.statslab.cam.ac.uk/~qz280/teaching/causal-2023/E2.pdf3 Jun 2024: Read the abstract andthe section “Tests of Initial a Priori Model” (page 649–651) in the paper titled “Causal Ordering ofAcademic Self-Concept and Academic Achievement: A Multiwave, Longitudinal Panel Analysis” -
Using sparsity to overcome unmeasured confounding:Two examples…
https://www.statslab.cam.ac.uk/~qz280/talk/mrc-bsu-2019/slides.pdf3 Jun 2024: Related problem: Gene colocalization test. Stylized statistical problem(γ̂. Γ̂. ) N. (( ... A standard test uses (Plagnol et al, 2009, Biostatistics). 2l(β̂) d χ2p1 under the above model. -
https://www.statslab.cam.ac.uk/~qz280/author/yao-zhang/index.xml
https://www.statslab.cam.ac.uk/~qz280/author/yao-zhang/index.xml3 Jun 2024: 00:00 0000 https://www.statslab.cam.ac.uk/qz280/publication/marginal-sensitivity-semiparametric/ What is a randomization test? ... tests https://www.statslab.cam.ac.uk/qz280/publication/multiple-crts/ Thu, 22 Apr 2021 09:27:32 0000 -
https://www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/inde…
https://www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/index.xml3 Jun 2024: 00 0000 https://www.statslab.cam.ac.uk/qz280/talk/imperial-2022/ Multiple conditional randomization tests https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Wed, 31 Aug 2022 ... 27 Jun 2022 17:10:00 0000 https://www.statslab.cam.ac.uk/qz280/talk/ims-2022 -
BETS: The dangers of selection bias in early analyses ...
https://www.statslab.cam.ac.uk/~qz280/talk/yale-biostats-2020/slides.pdf3 Jun 2024: The principle is to only include cases as Wuhan-exported that pass a “beyond areasonable doubt” test. ... Variations of Assumption 3 (exponential growth) and Assumption 5 (stabletravel) are implemented to test sensitivity. -
MR Data Challenge 2019 — The role of lipoprotein subfractions in…
https://www.statslab.cam.ac.uk/~qz280/publication/mr-lipids/report.pdf3 Jun 2024: The mr.raps package further implements diagnostics and falsification test of the MR analysis. ... Estimated overdispersion variance: 1.67e-08, standard error: 8.61e-09, p-value: 0.052. ## ANOVA test: are the weights and residuals independent? ## -
https://www.statslab.cam.ac.uk/~qz280/post/index.xml
https://www.statslab.cam.ac.uk/~qz280/post/index.xml3 Jun 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
https://www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/index.xml
https://www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/index.xml3 Jun 2024: Mar 2023 14:36:34 -0400 https://www.statslab.cam.ac.uk/qz280/publication/ranc/ Multiple conditional randomization tests https://www.statslab.cam.ac.uk/qz280/publication/multiple-crts/ Thu, 22 ... conservative/ Cross-screening in observational studies -
https://www.statslab.cam.ac.uk/~qz280/tag/randomization/index.xml
https://www.statslab.cam.ac.uk/~qz280/tag/randomization/index.xml3 Jun 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
https://www.statslab.cam.ac.uk/~qz280/author/dylan-small/index.xml
https://www.statslab.cam.ac.uk/~qz280/author/dylan-small/index.xml3 Jun 2024: tests for instrumental variable designs with an application to tendency to operate https://www.statslab.cam.ac.uk/qz280/publication/iv-falsification/ Wed, 01 Aug 2018 00:00:00 0000 ... qz280/publication/uniformly-conservative/ Cross-screening in -
Research
https://www.statslab.cam.ac.uk/~rjs57/Research.html21 Jun 2024: J. (2015) Invited discussion of An adaptive resampling test for detecting the presence of significant predictors by I. ... Samworth, R. and Johnson, O. (2005) The empirical process in Mallows distance, with application to goodness-of-fit tests. -
https://www.statslab.cam.ac.uk/~qz280/tag/philosophy/index.xml
https://www.statslab.cam.ac.uk/~qz280/tag/philosophy/index.xml3 Jun 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
https://www.statslab.cam.ac.uk/~qz280/author/qingyuan-zhao/index.xml
https://www.statslab.cam.ac.uk/~qz280/author/qingyuan-zhao/index.xml3 Jun 2024: tests https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Wed, 31 Aug 2022 13:45:00 0000 https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Confounder selection: ... 09:00:00 0000 https://www.statslab.cam.ac.uk/qz280/talk/fisher-2022/ What is a -
https://www.statslab.cam.ac.uk/~qz280/author/luke-keele/index.xml
https://www.statslab.cam.ac.uk/~qz280/author/luke-keele/index.xml3 Jun 2024: tests for instrumental variable designs with an application to tendency to operate https://www.statslab.cam.ac.uk/qz280/publication/iv-falsification/ Wed, 01 Aug 2018 00:00:00 0000 -
https://www.statslab.cam.ac.uk/~qz280/author/rachel-kelz/index.xml
https://www.statslab.cam.ac.uk/~qz280/author/rachel-kelz/index.xml3 Jun 2024: kelz/ Falsification tests for instrumental variable designs with an application to tendency to operate https://www.statslab.cam.ac.uk/qz280/publication/iv-falsification/ Wed, 01 Aug 2018 00:00:00 -
https://www.statslab.cam.ac.uk/~qz280/author/paul-rosenbaum/index.xml
https://www.statslab.cam.ac.uk/~qz280/author/paul-rosenbaum/index.xml3 Jun 2024: rosenbaum/ Cross-screening in observational studies that test many hypotheses https://www.statslab.cam.ac.uk/qz280/publication/cross-screening/ Mon, 06 Mar 2017 00:00:00 0000 -
https://www.statslab.cam.ac.uk/~qz280/tag/fun-posts/index.xml
https://www.statslab.cam.ac.uk/~qz280/tag/fun-posts/index.xml3 Jun 2024: well this model stands the test of time.</p>. -
Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/3 Jun 2024: 2024-02-08 2:00 PM — 3:00 PM London School of Economics and Political Science (LSE). -
Randomization (project page) | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/project/randomization/3 Jun 2024: We apply ideas from post-selection inference to randomization tests for adaptive experiments. ... August 2022The meaning of randomization tests has become obscure in statistics education and practice over the last century. -
https://www.statslab.cam.ac.uk/~qz280/tag/sensitivity-analysis/index.x…
https://www.statslab.cam.ac.uk/~qz280/tag/sensitivity-analysis/index.xml3 Jun 2024: cam.ac.uk/qz280/publication/sensitivity-ipw/ Cross-screening in observational studies that test many hypotheses https://www.statslab.cam.ac.uk/qz280/publication/cross-screening/ Mon, 06 Mar 2017 -
Randomization | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/randomization/3 Jun 2024: We apply ideas from post-selection inference to randomization tests for adaptive experiments. ... The meaning of randomization tests has become obscure in statistics education and practice over the last century. -
Causal interpretations of black-box models | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/publication/pdp/3 Jun 2024: Publication. Journal of Business & Economic Statistics (2019). 2024. Powered by the Academic theme forCite. -
Useful links | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/links/3 Jun 2024: R Packages: Organize, Test, Document, and Share Your Code by Hadley Wickham. -
IV & MR (project page) | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/project/iv-mr/3 Jun 2024: July 2019 eLifeWe propose a falsification test for the IV assumptions using sub-populations of the data with overwhelming proportion of treated or …. Luke Keele, Qingyuan Zhao, Rachel Kelz, Dylan Small. -
https://www.statslab.cam.ac.uk/~qz280/tag/causal-inference/index.xml
https://www.statslab.cam.ac.uk/~qz280/tag/causal-inference/index.xml3 Jun 2024: https://www.statslab.cam.ac.uk/qz280/talk/ccaim-summer-school-2022/ Multiple conditional randomization tests https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Wed, 31 Aug 2022 ... 31 Aug 2022 10:21:40 0200 -
Confounder selection via iterative graph expansion | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/lse-2024/3 Jun 2024: Event. Joint Econometrics and Statistics Seinar. Location. London School of Economics and Political Science (LSE). -
https://www.statslab.cam.ac.uk/~qz280/tag/instrumental-variables/index…
https://www.statslab.cam.ac.uk/~qz280/tag/instrumental-variables/index.xml3 Jun 2024: tests for instrumental variable designs with an application to tendency to operate https://www.statslab.cam.ac.uk/qz280/publication/iv-falsification/ Wed, 01 Aug 2018 00:00:00 0000 -
Qingyuan Zhao | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/author/qingyuan-zhao/3 Jun 2024: Search. Qingyuan Zhao. University Associate Professor in Statistics. I am a University Associate Professor of Statistics in the Statistical Laboratory, Department of Pure Mathematics and Mathematical Statistics (DPMMS) at University of Cambridge, a -
Randomization Inference | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/3 Jun 2024: The meaning of randomization tests has become obscure in statistics education and practice over the last century. ... A new term---'quasi-randomization test'---is …. We propose a general framework for (multiple) conditional randomization tests that -
Yao Zhang | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/author/yao-zhang/3 Jun 2024: Search. Yao Zhang. Latest. 2024. Powered by the Academic theme forCite. -
Multiple conditional randomization tests
https://www.statslab.cam.ac.uk/~qz280/talk/ims-2022/slides.pdf3 Jun 2024: This is a permutation test, although resampling is not needed. Qingyuan Zhao (University of Cambridge) Multiple conditional randomization tests June 27, 2022 @ IMS Annual Meeting 14 / 26. ... Permutation tests for treatment effect in randomizedexperiments -
Multiple Testing | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/3 Jun 2024: Motivated by a real proteomic dataset, we will present three promising and closely connected …. Multiple conditional randomization tests. ... We propose a general framework for (multiple) conditional randomization tests that incorporate several -
Genetics | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/genetics/3 Jun 2024: invariance. This paper uses a generalized Stolarsky's invariance principle to approximate the permutation $p$-value for two-sample linear test statistics. -
Dylan Small | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/author/dylan-small/3 Jun 2024: Search. Dylan Small. Latest. 2024. Powered by the Academic theme forCite. -
https://www.statslab.cam.ac.uk/~qz280/tag/mendelian-randomization/inde…
https://www.statslab.cam.ac.uk/~qz280/tag/mendelian-randomization/index.xml3 Jun 2024: well this model stands the test of time.</p> Seeking a summer research intern (EXPIRED) https://www.statslab.cam.ac.uk/qz280/post/summer-intern-2021/ Fri, 29 Jan 2021 -
The origin of randomization | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/post/randomization-origin/3 Jun 2024: to provide a basis for exact tests of significance and related interval estimates. {{% ... be applied to test the significance of the observed difference between the averages of plots treated differently. -
Luke Keele | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/author/luke-keele/3 Jun 2024: Search. Luke Keele. Latest. 2024. Powered by the Academic theme forCite. -
Discussion on (quasi-)randomization inference | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/post/randomization-hyunseung/3 Jun 2024: I personally think the Freedman and Lane’s example with “randomizing” gender makes the distinction between the classic randomization test and your quasi-randomization tests more clear than the example you ... Personally, I would define -
Rachel Kelz | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/author/rachel-kelz/3 Jun 2024: Falsification tests for instrumental variable designs with an application to tendency to operate. -
Permutation $p$-value approximation via generalized Stolarsky…
https://www.statslab.cam.ac.uk/~qz280/publication/stolarsky/3 Jun 2024: March 2016Abstract. This paper uses a generalized Stolarsky’s invariance principle to approximate the permutation $p$-value for two-sample linear test statistics. -
The randomization principle in causal inference: A modern look at…
https://www.statslab.cam.ac.uk/~qz280/talk/imperial-2022/3 Jun 2024: In the first part, I will use the potential outcomes framework to define the conditional randomization test, distinguish it with related ideas, and discuss some recent applications. -
Causal-Inference | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/causal-inference/3 Jun 2024: We apply ideas from post-selection inference to randomization tests for adaptive experiments.
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