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Category: Statistics

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Reply to Andrew Gelman and Flaxman et al. on the effectiveness of non-pharmaceutical interventions

  • Posted on December 28, 2020December 28, 2020
  • by Philippe Lemoine

It was recently brought to my attention by several people that Andrew Gelman, a statistician at Columbia whose blog is a must-read for anyone interested in applied statistics, had discussed my critique of Flaxman et al.’s paper on the effectiveness…

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  • Health

Why did more people die of COVID-19 in Sweden than in other Nordic countries? It probably had little to do with policy

  • Posted on December 22, 2020December 13, 2021
  • by Philippe Lemoine

If you have followed the debate about how we should deal with the COVID-19 pandemic, you know that people have been fighting about Sweden since it decided to  forego lockdowns and use a more relaxed approach. You wouldn’t know about…

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  • Health

Lockdowns, science and voodoo magic

  • Posted on December 4, 2020December 13, 2021
  • by Philippe Lemoine

As Europe and the United States are experiencing a second or third wave of the pandemic, depending on how you count, the debate about lockdowns is raging again. Many people are convinced they are the best way to deal with…

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  • Health

Hydroxychloroquine, significance testing and the misinterpretation of negative results

  • Posted on July 20, 2020July 27, 2020
  • by Philippe Lemoine

As you probably know, for the past few months, a controversy has been raging about hydroxychloroquine. Some people think it’s effective to treat COVID-19, whereas others think it doesn’t work or even that it’s harmful. One might have thought that…

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  • Health

COVID-19 and the infinite lockdown?

  • Posted on April 21, 2020October 1, 2020
  • by Philippe Lemoine

[Note: This is a guest post by @jeuasommenulle, who usually talks mostly about banking on Twitter, but has been tweeting a lot about the reproduction number of COVID-19 lately. He recently told me that he’d been working on a model…

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  • Statistics

Is Ramarni Wilfred a statistical impossibility?

  • Posted on December 10, 2019January 23, 2020
  • by Philippe Lemoine

A couple of days ago Mansa Keita, a computer scientist, tweeted about a 16-year-old black prodigy who lives in the UK: A quick Google search reveals this story had first been reported in 2014, back when Ramarni — Wilfred is…

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  • Statistics

A politically incorrect guide to affirmative action

  • Posted on August 30, 2017April 23, 2019
  • by Philippe Lemoine

During the controversy about James Damore’s infamous memo, which I briefly discussed here, I read a lot of nonsense from a lot of people, who clearly don’t understand much about this debate. If you have been following the debate about…

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  • Statistics

Why election models did not predict Trump’s victory

  • Posted on January 24, 2017April 23, 2019
  • by Philippe Lemoine

I wrote a slightly different version of this post on Facebook the day before the election, in order to argue why it was irrational to buy the claims made by some pundits, such as Sam Wang from the Princeton Election…

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  • Moving to CSPI
  • Reply to Andrew Gelman and Flaxman et al. on the effectiveness of non-pharmaceutical interventions
  • Why did more people die of COVID-19 in Sweden than in other Nordic countries? It probably had little to do with policy
  • Lockdowns, science and voodoo magic
  • Did China lie about COVID-19? – Did China fudge the data? – Part 5

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