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Professor Ioannis Kontoyiannis | Statistical Laboratory
www.statslab.cam.ac.uk/person/ik35525 Jul 2024: Between 2005 and 2021 he was with the Department of Informatics of the Athens University of Economics and Business. ... I Papageorgiou, I Kontoyiannis. (2023). (doi: 10.48550/arxiv.2308.00913). Temporally Causal Discovery Tests for Discrete Time Series -
Talks | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/22 Jul 2024: 2024-02-08 2:00 PM — 3:00 PM London School of Economics and Political Science (LSE). -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?cid=2092073491&clv=1&kw=%E9%80%8F%E6%B0%A3%E9%9E%8B&p=%E9%80%8F%E6%B0%A3%E9%9E%8B&page=5325 Jul 2024: 3562. (doi: 10.1002/sim.3722). Economic issues in shared infrastructures. C Courcoubetis, RR Weber. – ... 2009). 15,. 205. (doi: 10.3109/14639239009025268). Evaluating medical expert systems: what to test and how? -
Publications | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/publication/22 Jul 2024: Falsification tests for instrumental variable designs with an application to tendency to operate. ... Journal of Business & Economic Statistics (2019). Charles Zheng, Trevor Hastie, Robert Tibshirani (2016). -
STATISTICAL MODELLING Part IIC, Michaelmas 2021 Practical 8:…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P8.pdf22 Jul 2024: mod2 <- glm(Freq subject_msubject_f match, data=SD_subj, family=poisson). > anova(mod1, mod2, test="LR"). ... Therefore we can calculate the approximate p-value for the test above with. > -
Mendelian randomization
www.statslab.cam.ac.uk/~qz280/talk/mr-tutorial/slides.pdf22 Jul 2024: 7/40. IV in Economics: Effect of military service on earnings2. Lottery number Z Military service X Earning Y. ... administrative records. American Economic Review, 80(3), 313–336. 8/40. Results of the Vietnam-war lottery study. -
Causal Inference: An Introduction Qingyuan Zhao Statistical…
www.statslab.cam.ac.uk/~qz280/talk/ssrmp-2020/slides.pdf22 Jul 2024: Examples in social sciences. 1 Economics: How does supply and demand (causally) depend on price? ... Statistical inference: Approach 1. Randomisation inference (permutation test). Test the hypothesis H0 : A Y | X (or H0 : A Y if randomisation does -
Sensitivity analysis for observational studies: Past, Present, and…
www.statslab.cam.ac.uk/~qz280/talk/uea-2024/slides.pdf22 Jul 2024: Solid curves: contours of likelihood ratio test. Dashed curves:. estimated ATE reduced by half. ... Blattman, Christopher and Jeannie Annan (2010). “The Consequences of ChildSoldiering”. In: The Review of Economics and Statistics 92.4, pp. -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?cid=23336&clv=1&kw=%E9%80%8F%E6%B0%A3%E9%9E%8B&p=%E9%80%8F%E6%B0%A3%E9%9E%8B&page=2625 Jul 2024: RA Lockhart, RJ Samworth. – Test. (2017). 26,. 734. (doi: 10.1007/s11749-017-0555-1). ... M Löffler, R Nickl. – Test. (2017). 26,. 731. (doi: 10.1007/s11749-017-0558-y). -
Will competition-winning methods for causal inference also succeed in …
www.statslab.cam.ac.uk/~qz280/publication/acic-competition-comment/paper.pdf22 Jul 2024: REFERENCES. Angrist, J. D. and Krueger, A. B. (1999). Empirical strategies in labor economics. ... TheAmerican Economic Review Papers and Proceedings 93 126-132. Keele, L. and Small, D. -
Causal Inference
www.statslab.cam.ac.uk/~qz280/teaching/causal-2023/slides.pdf22 Jul 2024: Randomization inference: General tests. Randomization provides the “reasoned basis” for Fisher’s exact test. ... Randomization inference: F-test. Setting: Neyman-Rubin model, A = {0,1,. ,k 1}. -
Sensitivity analysis for observational studies: Looking back and…
www.statslab.cam.ac.uk/~qz280/talk/yale-biostats-2020-2/slides.pdf22 Jul 2024: The Reviewof Economics and Statistics, 92(4):882–898, 2010. doi:10.1162/REST a 00036. C. ... Biometrics, 69:803–811, 2013. G. W. Imbens. Sensitivity to exogeneity assumptions in program evaluation.American Economic Review, 93:126–132, 2003. -
Curriculum Vitae
www.statslab.cam.ac.uk/~qz280/files/cv.pdf20 Mar 2024: arXiv: 2208.13871 [stat.ME]. 49. Y. Zhang and Q. Zhao, “Multiple conditional randomization tests,” 2021. ... 15. Journal of the Americal Statistical Association. 16. Journal of Business & Economic Statistics. -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?cid=3994318&clv=1&kw=%E9%80%8F%E6%B0%A3%E9%9E%8B&p=%E9%80%8F%E6%B0%A3%E9%9E%8B&page=2225 Jul 2024: 2019). 47,. 583. (doi: 10.1214/18-aos1702). Falsification Tests for Instrumental Variable Designs With an Application to Tendency to Operate. ... LCG Rogers. – Decisions in Economics and Finance. (2018). 41,. 447. -
Confounder adjustment in large-scale linear structural models
www.statslab.cam.ac.uk/~qz280/publication/cate-mutual-fund/slides.pdf22 Jul 2024: I In R, run summary(lm(YX)).I Equivalent to a two-sample t-test with equal variance. ... Journal of Financial Economics, 33(1).7. Carhart, M. M. (1997). “On persistence in mutual fund performance.” Journal of Finance, 52(1). -
CAUSAL INTERPRETATIONS OF BLACK-BOX MODELS QINGYUAN ZHAO AND TREVOR…
www.statslab.cam.ac.uk/~qz280/publication/pdp/paper.pdf22 Jul 2024: ICE is first introduced to discover. interaction between the predictor variables and visually test if the function g is additive. ... Journal of Economic Perspectives, 31(2):87–106, 2017. Judea Pearl. Comment: Graphical models, causality and -
Two-Sample Instrumental Variable Analysis: Challenges and Some…
www.statslab.cam.ac.uk/~qz280/publication/two-sample-iv/slides.pdf22 Jul 2024: Future work: Goodness-of-fit test of the statistical model. Good statistical fit more confidence in the results? ... TheReview of Economics and Statistics, 92(3):557–561, 2010. M. Katan. Apoupoprotein e isoforms, serum cholesterol, and cancer. -
Lecture Notes on Causal Inference(with corrections) Qingyuan Zhao May …
www.statslab.cam.ac.uk/~qz280/teaching/causal-2023/notes-2021.pdf22 Jul 2024: The first approachtries to test the conditional independence A[n] Y[n](0) | X. ... A level-α randomisation test then rejects H0 if Pm α. 2.19 Theorem. Results that match 1 of 2 words
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Multiple conditional randomization tests | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/berkeley-2021/22 Jul 2024: Search. Multiple conditional randomization tests. Date. 2021-09-29 9:30 PM — 10:30 PM. -
What is a randomization test? | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/toronto-2022/22 Jul 2024: Search. What is a randomization test? Date. 2022-03-23 2:00 PM — 3:00 PM. -
Falsification tests for instrumental variable designs with an…
https://www.statslab.cam.ac.uk/~qz280/publication/iv-falsification/22 Jul 2024: Search. Falsification tests for instrumental variable designs with an application to tendency to operate. ... We demonstrate this test using an IV known as tendency to operate (TTO) from health services research. -
Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/22 Jul 2024: 2024-02-08 2:00 PM — 3:00 PM London School of Economics and Political Science (LSE). -
Multiple conditional randomization tests | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/mcp-2022/22 Jul 2024: Search. Multiple conditional randomization tests. Date. 2022-08-31 1:45 PM — 2:15 PM. -
www.statslab.cam.ac.uk/~qz280/tag/freedman/index.xml
www.statslab.cam.ac.uk/~qz280/tag/freedman/index.xml22 Jul 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 -
www.statslab.cam.ac.uk/~qz280/talk/index.xml
www.statslab.cam.ac.uk/~qz280/talk/index.xml22 Jul 2024: talk/ccaim-summer-school-2022/ Multiple conditional randomization tests https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Wed, 31 Aug 2022 13:45:00 0000 ... ac.uk/qz280/talk/mcp-2022/ Multiple conditional randomization tests -
Multiple conditional randomization tests | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/publication/multiple-crts/22 Jul 2024: April 2021Abstract. We propose a general framework for (multiple) conditional randomization tests that incorporate several important ideas in the recent literature. ... We show that under a change of perspective, many existing statistical methods, -
Professor Chris Rogers | Statistical Laboratory
www.statslab.cam.ac.uk/person/lcgr125 Jul 2024: LCG Rogers. – Decisions in Economics and Finance. (2018). 41,. 447. ... 2018). 51,. 898. (doi: 10.1239/jap/1421763316). Combining different models. LCG Rogers. – Mathematics and Financial Economics. -
Dr Susan Pitts | Statistical Laboratory
www.statslab.cam.ac.uk/person/smp2725 Jul 2024: E Frostig, SM Pitts, K Politis. – Insurance: Mathematics and Economics. ... SM Pitts, K Politis. – Insurance: Mathematics and Economics. (2008). 42,. -
Cross-screening in observational studies that test many hypotheses |…
https://www.statslab.cam.ac.uk/~qz280/publication/cross-screening/22 Jul 2024: Search. Cross-screening in observational studies that test many hypotheses. -
What is a randomization test? | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/publication/single-crt/22 Jul 2024: A new term—‘quasi-randomization test’—is introduced to define significance tests based on theoretical models and distinguish these tests from the ‘randomization tests’ based on the physical act of randomization. ... The proposed terminology -
Multiple conditional randomization tests
www.statslab.cam.ac.uk/~qz280/talk/berkeley-2021/slides.pdf22 Jul 2024: Slides: http://statslab.cam.ac.uk/qz280/. The role of randomization tests became obscure. Fisher (1935): To substitute t-test when normality is not true and to restore randomization as “thephysical ... Conditional randomization tests for discrete -
Sensitivity analysis for inverse probability weighting estimators via …
https://www.statslab.cam.ac.uk/~qz280/publication/sensitivity-ipw/22 Jul 2024: It is mostly applicable to matched observational studies; 2. It only tests the sharp null hypothesis; 3. -
Paul Rosenbaum | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/author/paul-rosenbaum/22 Jul 2024: Cross-screening in observational studies that test many hypotheses. -
A fun model to explain the surging popularity of Mendelian…
https://www.statslab.cam.ac.uk/~qz280/post/mr-vs-gwas-2021/22 Jul 2024: Let’s see how well this model stands the test of time. -
History of the Statistical Laboratory | Statistical Laboratory
www.statslab.cam.ac.uk/history-statistical-laboratory25 Jul 2024: Search site. Statistical Laboratory. History of the Statistical Laboratory. A Realised Path. The Cambridge Statistical Laboratory upto 1993 (revised 2002). Contents. 1. 1947-55 Creation and confirmation. 1955-61 Disaster and diaspora. 1961-66 The -
Selective Randomization Inference for Adaptive Experiments | Qingyuan …
https://www.statslab.cam.ac.uk/~qz280/publication/selective-randomization/22 Jul 2024: In a nutshell, our approach applies conditional post-selection inference to randomization tests. ... Lastly, we demonstrate our method and compare it with other randomization tests using synthetic and real-world data. -
A constructive approach to selective risk control | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/publication/selective-risk/22 Jul 2024: the null but also at other locations for free; (2) in the context of permutation tests, the BH procedure with exact permutation p-values can be well approximated by a procedure -
www.statslab.cam.ac.uk/~qz280/author/yao-zhang/index.xml
www.statslab.cam.ac.uk/~qz280/author/yao-zhang/index.xml22 Jul 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 -
Practical: Randomization inference
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/P1.pdf22 Jul 2024: Here are some points you mayconsider. • How do the two randomization tests compare with each other? ... Why?• How can you "invert" the randomization tests to obtain an interval estimator of the treatment. -
CAUSAL INFERENCE Part III / Michaelmas 2023Example Sheet 1 ...
www.statslab.cam.ac.uk/~qz280/teaching/causal-2023/E1.pdf22 Jul 2024: Compare this with Fisher’s exact test in the randomization model discussedin lectures. ... i. This test should compare T with quantilesof the standard normal distribution after scaling. -
Confounder Adjustment in Multiple Hypothesis Testing
www.statslab.cam.ac.uk/~qz280/publication/cate/slides.pdf22 Jul 2024: Model andInference. Model andIdentifiability. Estimation. Hypothesis Tests. NumericalExamples. Summary. 12/49. Association test. ... Estimation. Hypothesis Tests. NumericalExamples. Summary. 38/49. Significance test for confounding. Theorem (Wang, Z., -
SISCER Module 12 Lecture 4: Matched Case-Control Studies
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L4.pdf22 Jul 2024: I Mantel–Haenszel test. I Logistic regression adjusting for treatment, stratum indicators (and potentiallyother covariates). ... multiple 22 tablesI Consider sensitivity analysis for Fisher’s exact test in one 22 table. -
STATISTICAL MODELLING Part IIC, Michaelmas 2019Practical 1:…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P1S.pdf22 Jul 2024: examinable) tells us is a valid approximationto the exact distribution of the test statistic under the null. ... the (approximate) p-value for thetwo-sided test statistic. This is known as a permutation or exact test, and you can read a briefdescription -
STATISTICAL MODELLING Part IIC, Michaelmas 2019Practical 6: Binomial…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P6S.pdf22 Jul 2024: This test cannot reject the simpler model without interactions between mumMyopic and dadMyopic. ... To test the hypothesis thatthe effects are equal, we can use the z-test for this coefficient.mumPlusdadMyopic <- (dadMyopic == "Yes") (mumMyopic == -
STATISTICAL MODELLING Part IIC, Michaelmas 2021Practical 6: Binomial…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P6.pdf22 Jul 2024: 2 609 439.60 8 40.478 2.61e-06. In contrast to the lm case, here we need to specify that we want to perform a likelihood ratio test (test= ... To formally test this hypothesis, we should createa variable. > mumPlusdadMyopic <- (dadMyopic == "Yes") -
SISCER Module 15 Practice 3: DID
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/S4.pdf22 Jul 2024: Estimate Std. Error t value Pr(>|t|)## -0.036548937 0.012646474 -2.890049673 0.003893424# cluster-robust standard error with CR2 small-sample correctioncoeftest.twfe <- coef_test(fit.twfe,. ... 2. mod <- lm(form, data = df). # using arguments from here:# -
Multiple conditional randomization tests | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/talk/ims-2022/22 Jul 2024: Search. Multiple conditional randomization tests. Date. 2022-06-27 5:10 PM — 5:30 PM. -
SISCER Module 12 Lecture 5: Instrumental variables
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L5.pdf22 Jul 2024: IV in Economics: Effect of military service on earnings (Angrist, 1990). ... American Economic Review, 80(3):313–336. Gamazon, E. R., , Wheeler, H. E., Shah, K. -
STATISTICAL MODELLING Part IIC, Michaelmas 2021Practical 5: ANOVA and …
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P5.pdf22 Jul 2024: interaction.plot(Photo, Quality, fitted.values(EssayMarksLM2)). > interaction.plot(Quality, Photo, fitted.values(EssayMarksLM2)). To test for the presence of interactions, we again use an F-test:. > ... Would it be possible to com-pare the models -
Sensitivity analysis via stochastic programming
www.statslab.cam.ac.uk/~qz280/talk/icsds-2023/slides.pdf22 Jul 2024: Blattman, Christopher and Jeannie Annan (2010). “The Consequences of ChildSoldiering”. In: The Review of Economics and Statistics 92.4, pp. ... In:American Economic Review 93, pp. 126–132. Saltelli, Andrea et al. (2004).
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