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zeynep's profile
zeynep tufekci
zeynep tufekci
zeynep tufekci
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@zeynep

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zeynep tufekciVerified account

@zeynep

Complex systems, wicked problems. Society, technology, science and more. @UNC professor. @NYTimes columnist. My newsletter is @insight: http://www.theinsight.org 

floating in a most peculiar way
theinsight.org
Joined August 2009

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    1. zeynep tufekci‏Verified account @zeynep 2 Sep 2021

      zeynep tufekci Retweeted Jason Abaluck

      A very, very impressive cluster randomized trial. Very hard to do! See thread for findings.https://twitter.com/Jabaluck/status/1433036923610742789 …

      zeynep tufekci added,

      Jason Abaluck @Jabaluck
      With dozens of researchers at Yale, Stanford, Berkeley and IPA and several other organizations, we ran a cluster randomized trial involving almost 350,000 people and 600 villages in Bangladesh to assess the impact of community masking on COVID.
      Show this thread
      22 replies 163 retweets 582 likes
      Show this thread
    2. Hugh Zahnar‏ @HughDalton20 2 Sep 2021
      Replying to @zeynep

      Hugh Zahnar Retweeted Jason Abaluck

      Summary: Masks work!* * except for cloth masks (they’re useless), for anyone under 50, and only in conjunction with increased physical distancing. And after all the, the author thinks vaccines are only “probably” better than masks …https://twitter.com/Jabaluck/status/1433129444940599296 …

      Hugh Zahnar added,

      Jason Abaluck @Jabaluck
      I do agree that vaccines are probably even more effective than masks but there are three very important subtleties here that make the 11% way too conservative @profemilyoster. https://twitter.com/ProfEmilyOster/status/1433123918315917313 …
      Show this thread
      2 replies 0 retweets 17 likes
    3. zeynep tufekci‏Verified account @zeynep 2 Sep 2021
      Replying to @HughDalton20

      That's not the conclusion, well, I guess unless you don't know how to interpret randomized cluster trials.

      4 replies 0 retweets 4 likes
    4. Hugh Zahnar‏ @HughDalton20 2 Sep 2021
      Replying to @zeynep

      Pic 1. the study shows no statistical significance for those below age 50. Pic 2. Cloth masks don’t work. What am I missing?pic.twitter.com/1w7vuh8Wy3

      1 reply 0 retweets 6 likes
    5. zeynep tufekci‏Verified account @zeynep 2 Sep 2021
      Replying to @HughDalton20

      An understanding of randomized cluster trials, statistical power, that they could not confine villagers to their village and order the controls not to wear masks, overdispersion, very low prevalence at the time. This is a *minimum* effect detection, not an absolute effect.

      2 replies 0 retweets 3 likes
      zeynep tufekci‏Verified account @zeynep 2 Sep 2021
      Replying to @zeynep @HughDalton20

      For that you need to read the whole study and understand what randomized cluster trials do and don't show. They are not like medical clinical trials where we essentially control the whole thing, and don't deal with overdispersion and ecological effects.

      8:04 AM - 2 Sep 2021
      3 replies 0 retweets 0 likes
        1. Fanni K‏ @fannika 2 Sep 2021
          Replying to @zeynep @HughDalton20

          So what do you think is the correct bottom line conclusion (as qualified) of this study in a few words? E.g.: "Surgical masks are better than cloth masks and they help reduce chance of infection when [_____]? Thanks!

          0 replies 0 retweets 3 likes
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