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briandavidearp's profile
Brian D. Earp
Brian D. Earp
Brian D. Earp
@briandavidearp

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Brian D. Earp

@briandavidearp

@Yale; @UniofOxford; @hastingscenter; @TheAtlantic - psychology, philosophy of science, bioethics, tech, politics, gender and sexuality, etc. RT ≠ endorsement.

oxford.academia.edu/BrianEarp
Joined July 2011

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    1. Brian D. Earp‏ @briandavidearp Apr 29

      Why all randomised controlled trials produce biased resultshttps://buff.ly/2qR8gGO 

      6 replies 20 retweets 48 likes
    2. Jonathan Livengood‏ @Prof_Livengood Apr 29
      Replying to @briandavidearp

      I saw some people complaining about that article earlier this week. But I couldn't figure out what they thought was wrong with it ... Do you have any thoughts on it pro or con?

      2 replies 0 retweets 1 like
    3. Brian D. Earp‏ @briandavidearp Apr 29
      Replying to @Prof_Livengood

      I’m still reading it but the main points seem right

      2 replies 0 retweets 1 like
    4. Andrew Althouse‏ @ADAlthousePhD Apr 29
      Replying to @briandavidearp @Prof_Livengood

      I’ll write a detailed reply in the next few days (traveling right now) but this is...not good.

      3 replies 0 retweets 2 likes
    5. Andrew Althouse‏ @ADAlthousePhD Apr 29
      Replying to @ADAlthousePhD @briandavidearp @Prof_Livengood

      That’s not to say trials are perfect. Literally no one has said that. But this article makes some absolutely dreadful and incorrect statements.

      1 reply 0 retweets 0 likes
    6. Andrew Althouse‏ @ADAlthousePhD Apr 29
      Replying to @ADAlthousePhD @briandavidearp @Prof_Livengood

      And it’s become extremely frustrating to see people spreading this article based on a flashy title that may have drawn their attention rather than actually reading it closely to see why it’s so misleading.

      1 reply 0 retweets 0 likes
    7. Andrew Althouse‏ @ADAlthousePhD Apr 29
      Replying to @ADAlthousePhD @briandavidearp @Prof_Livengood

      To start, as I pointed out the other day, the author makes at least one statement that is painfully naive about how trials and randomization are actually carried out.

      1 reply 0 retweets 0 likes
      Brian D. Earp‏ @briandavidearp Apr 29
      Replying to @ADAlthousePhD @Prof_Livengood

      What's that one?

      5:14 PM - 29 Apr 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Andrew Althouse‏ @ADAlthousePhD Apr 29
          Replying to @briandavidearp @Prof_Livengood

          Probably best if I wait for full reply so all can be given in proper context but here’s the preview...

          1 reply 0 retweets 1 like
        3. Andrew Althouse‏ @ADAlthousePhD Apr 29
          Replying to @ADAlthousePhD @briandavidearp @Prof_Livengood

          pic.twitter.com/J1JsKYgc6w

          1 reply 0 retweets 0 likes
        4. Andrew Althouse‏ @ADAlthousePhD Apr 29
          Replying to @ADAlthousePhD @briandavidearp @Prof_Livengood

          In the vast majority of RCT’s for medical interventions, this is an impossible condition. I am guessing that zero of the 10 trials he cited could have done this. Why? Because we can’t just freeze a bunch of patients and then thaw them out & randomize all on the same day.

          1 reply 0 retweets 0 likes
        5. Andrew Althouse‏ @ADAlthousePhD Apr 29
          Replying to @ADAlthousePhD @briandavidearp @Prof_Livengood

          Then there’s this:pic.twitter.com/VoPQOLNkzi

          1 reply 0 retweets 1 like
        6. Andrew Althouse‏ @ADAlthousePhD Apr 29
          Replying to @ADAlthousePhD @briandavidearp @Prof_Livengood

          Those probabilities are decidedly not the same. Anyone with a reasonable understanding of probabilities should know this.

          1 reply 0 retweets 1 like
        7. Jonathan Livengood‏ @Prof_Livengood Apr 29
          Replying to @ADAlthousePhD @briandavidearp

          I find that passage difficult to parse. Is he saying that Pr(54 die | Treat) is to Pr(64 die | Control) as Pr(54 Heads | Coin #1) is to Pr(64 Heads | Coin #2)? Really baffling passage.

          1 reply 0 retweets 2 likes
        8. Andrew Althouse‏ @ADAlthousePhD Apr 30
          Replying to @Prof_Livengood @briandavidearp

          It’s an awful passage, and shows a poor understanding of basic probabilities. The probability of “getting 10 more heads than tails” in 624 flips is very different than the probability that there is no difference between tx given 54 deaths in one group and 64 in other group

          1 reply 0 retweets 0 likes
        9. Andrew Althouse‏ @ADAlthousePhD Apr 30
          Replying to @ADAlthousePhD @Prof_Livengood @briandavidearp

          Stuff like this is why it’s hard to take any of this article seriously, BTW. It’s not that RCT’s are perfect and should never be questioned; it’s that the person who wrote this chose a bunch of curious and/or outright wrong examples to illustrate his point

          1 reply 0 retweets 0 likes
        10. 2 more replies

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