Posts Tagged ‘ Causal Inference ’

Why I’m still not persuaded by the claim that subliminal smiley-faces can have big effects on political attitudes

September 23, 2014
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Why I’m still not persuaded by the claim that subliminal smiley-faces can have big effects on political attitudes

We had a discussion last month on the sister blog regarding the effects of subliminal messages on political attitudes.  It started with a Larry Bartels post entitled “Here’s how a cartoon smiley face punched a big hole in democratic theory,” with the subtitle, “Fleeting exposure to ‘irrelevant stimuli’ powerfully shapes our assessments of policy arguments,” discussing the […]

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Estimating discontinuity in slope of a response function

September 20, 2014
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Peter Ganong sends me a new paper (coauthored with Simon Jager) on the “regression kink design.” Ganong writes: The method is a close cousin of regression discontinuity and has gotten a lot of traction recently among economists, with over 20 papers in the past few years, though less among statisticians. We propose a simple placebo […]

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B my J

September 8, 2014
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As part of our work on the Regression Discontinuity Design for the British Journal of Medicine, we decided we should prepare a short, introductory research paper. We weren't holding our breath, as we thought that, while obviously interesting to cl...

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Estimated effect of early childhood intervention downgraded from 42% to 25%

August 8, 2014
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Last year I came across an article, “Labor Market Returns to Early Childhood Stimulation: a 20-year Followup to an Experimental Intervention in Jamaica,” by Paul Gertler, James Heckman, Rodrigo Pinto, Arianna Zanolini, Christel Vermeerch, Susan Walker, Susan M. Chang, and Sally Grantham-McGregor, that claimed that early childhood stimulation raised adult earnings by 42%. At the […] The post Estimated effect of early childhood intervention downgraded from 42% to 25% appeared…

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The health policy innovation center: how best to move from pilot studies to large-scale practice?

July 31, 2014
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A colleague pointed me to this news article regarding evaluation of new health plans: The Affordable Care Act would fund a new research outfit evocatively named the Innovation Center to discover how to most effectively deliver health care, with $10 billion to spend over a decade. But now that the center has gotten started, many […] The post The health policy innovation center: how best to move from pilot studies…

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A linguist has a question about sampling when the goal is causal inference from observational data

July 28, 2014
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Nate Delaney-Busch writes: I’m a PhD student of cognitive neuroscience at Tufts, and a question came recently with my colleagues about the difficulty of random sampling in cases of highly controlled stimulus sets, and I thought I would drop a line to see if you had any reading suggestions for us. Let’s say I wanted […] The post A linguist has a question about sampling when the goal is causal…

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“The Europeans and Australians were too eager to believe in renal denervation”

July 16, 2014
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“The Europeans and Australians were too eager to believe in renal denervation”

As you can see, I’m having a competition with myself for the most boring title ever. The story, though, is not boring. Paul Alper writes: I just came across this in the NYT. Here is the NEJM article itself: And here is the editorial in the NEJM: The gist is that on the basis of […] The post “The Europeans and Australians were too eager to believe in renal denervation”…

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More on those randomistas

June 25, 2014
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Following up on our recent post, I clicked on some of Ziliak’s links and found lots of good stuff, especially the post by Berk Ozler. I have no knowledge of his work but I like his writing; see here, for example. Ziliak replied: Ozler’s post is very good indeed, and well written. Ozler’s suggestion for […] The post More on those randomistas appeared first on Statistical Modeling, Causal Inference, and…

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Smullyan and the Randomistas

June 23, 2014
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Smullyan and the Randomistas

Steve Ziliak wrote in: I thought you might be interested in the following exchanges on randomized trials: Here are a few exchanges on the economics and ethics of randomized controlled trials, reacting to my [Zilliak's] study with Edward R. Teather-Posadas, “The Unprincipled Randomization Principle in Economics and Medicine”. Our study is forthcoming in the Oxford […] The post Smullyan and the Randomistas appeared first on Statistical Modeling, Causal Inference, and…

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It’s not matching or regression, it’s matching and regression.

June 22, 2014
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A colleague writes: Why do people keep praising matching over regression for being non parametric? Isn’t it f’ing parametric in the matching stage, in effect, given how many types of matching there are… you’re making structural assumptions about how to deal with similarities and differences…. the likelihood two observations are similar based on something quite […] The post It’s not matching or regression, it’s matching and regression. appeared first on…

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