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David Roodman Profile
David Roodman

@davidroodman

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Senior advisor @open_phil. Formerly @GiveWell, @CGDev.

Washington, DC
Joined June 2009
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@davidroodman
David Roodman
4 months
🚨 @I4Replication released my experiment with a new academic-literary form, a “replication opinion.”.I made myself judge in a debate and wrote an opinion that is more credible than either party could muster. Piece: Post: 🧵 follows.
davidroodman.com
While I discuss my employer's work in this post, all opinions are my own. My employer, Open Philanthropy, strives to make grants in light of evidence. Of course, many uncertainties in our decision-...
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@davidroodman
David Roodman
2 months
RT @JohnArnoldFndtn: Good illustration of how much the Texas grid has changed in just 6 years. yellow = solar; purple = batteries; dark gr….
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@davidroodman
David Roodman
2 months
RT @RetractionWatch: Springer Nature book on machine learning is full of made-up citations.
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@davidroodman
David Roodman
2 months
RT @RetractionWatch: "How Peer Review Became Science’s Most Dangerous Illusion.".
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@davidroodman
David Roodman
2 months
My critical replication of a study of childhood vaccination and adult wages in India is final & effectively published.Thread: Free pub:
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@davidroodman
David Roodman
2 years
My new, short write-up about a flaw in a recent study finding that India’s universal vaccination program boosted future wages of babies who got the shots: 1/.
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@davidroodman
David Roodman
2 months
Whistleblower Raphaël Lévy on the systemic discouragement for calling out scientific fraud: "if a student or a more junior researcher had faced such a backlash it is unlikely that they would have been able to stand up to it."
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chemistryworld.com
Raphaël Lévy talks to Chemistry World about reporting Jolanda Spadavecchia, the backlash he faced and how misconduct should be investigated
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@davidroodman
David Roodman
2 months
RT @MishaTeplitskiy: Good title, good conclusion
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@davidroodman
David Roodman
2 months
RT @emollick: 👀Using an autonomous agent based on o3-mini and GPT-4.1, a team from Harvard, MIT & other institutions reproduced and updated….
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@davidroodman
David Roodman
3 months
RT @leecrawfurd: "Many global health problems are thorny and difficult. Lead, unusually, is not one of those. We already know how to reduce….
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@davidroodman
David Roodman
3 months
Those doing the vetting would need to be embedded in an incentive regime outside academia, one that frees them to worry more about the consequences of error. Like red teams at the CIA & DOD or GiveWell, with its great "what if we're wrong" work (.
@alexwcohen
Alex Cohen
8 months
Each year, GiveWell makes hundreds of millions of dollars in grants aimed at saving and improving lives globally. My team's job is to look for ways we could be wrong and make our research better. Here's what we've been up to and what's next đź§µ.
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@davidroodman
David Roodman
3 months
More to the point, and more constructively, maybe research dissemination and review need to be decoupled. If we abolish peer review, the vacuum of caveat emptor would create demand for independent, credible vetting of important research.
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@davidroodman
David Roodman
3 months
I'm increasingly an anarchist on peer review & journals. Would we be better off without them?. The publication system creates intense pressures that distort what is published. Then, in the public eye, it certifies the results as reliable.
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@davidroodman
David Roodman
3 months
Update: AEJ Applied rejected my "replication opinion" on the debate they hosted. It was an odd duck. But there's still something wrong when research consumers structurally care more about truth than the producers & the former overly trust peer review & the latter play along.
@davidroodman
David Roodman
4 months
🚨 @I4Replication released my experiment with a new academic-literary form, a “replication opinion.”.I made myself judge in a debate and wrote an opinion that is more credible than either party could muster. Piece: Post: 🧵 follows.
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@davidroodman
David Roodman
3 months
Fantastic work. When I was at GiveWell, we had an "I was wrong" T-shirt you could wear when found to be wrong. It made it fun to admit error and was both a signal of and contributor to a culture of truth-seeking.
@alexwcohen
Alex Cohen
8 months
Each year, GiveWell makes hundreds of millions of dollars in grants aimed at saving and improving lives globally. My team's job is to look for ways we could be wrong and make our research better. Here's what we've been up to and what's next đź§µ.
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@davidroodman
David Roodman
3 months
RT @alexwcohen: We wanted to verify the evidence behind >$1 billion in grants we've made to our top charities — so we asked @I4Replication….
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@davidroodman
David Roodman
3 months
I'm flattered. But I know Stuart, as a wise person on metascience, means this as a concrete strategy for making the world better. I agree! I'm thinking now about what I can do to promote more in-depth vetting of important studies. Peer review alone falls way short.
@stuartbuck1
Stuart Buck
3 months
The world needs more people like David Roodman who care about truth: .
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@davidroodman
David Roodman
3 months
RT @TheReplicateNet: GUEST BLOG at TRN ("Appeal to Me – First Trial of a “Replication Opinion”) Comments. Replications. And now "Replicatio….
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replicationnetwork.com
[This blog is a repost of a blog that first appeared at davidroodman.com. It is republished here with permission from the author.] My employer, Open Philanthropy, strives to make grants in light of…
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@davidroodman
David Roodman
3 months
RT @johannarickne: 10/ Please help share our extended replication to stop the spread of this erroneous policy evaluation! . Read the new re….
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@davidroodman
David Roodman
3 months
Welcome @JustinSandefur! I take Granger-causal credit for this excellent hire. Justin came to @CGDev years after me, and now to @open_phil years after me. A few days ago he was even sitting at my desk.
@otis_reid
Otis Reid
3 months
Extremely excited to have @JustinSandefur officially joining @open_phil to lead our work on economic growth in LMICs! Lots of opportunities and challenges ahead and I think Justin will do a great job leading this work.
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