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VASISHTH: The Statistical Significance Filter Leads To Overoptimistic Expectations of Replicability

[This blog draws on the article “The statistical significance filter leads to overoptimistic expectations of replicability”, authored by Shravan Vasishth, Daniela Mertzen, Lena A. Jäger, and Andrew Gelman, published in the Journal of Memory and Language, 103, 151-175, 2018. An open…

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Significant Effects From Low-Powered Studies Will Be Overestimates

[From the article, “The statistical significance filter leads to overoptimistic expectations of replicability” by Shravan Vasishth, Daniela Mertzen, Lena Jäger, and Andrew Gelman, published in the Journal of Memory and Language] Highlights: “When low-powered studies show significant effects, these will…

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IN THE NEWS: Wired (November 14, 2017)

[From the article “The Dismal Science Remains Dismal, Say Scientists” by Adam Rogers at wired.com] “WHEN HRISTOS DOUCOULIAGOS was a young economist in the mid-1990s, he got interested in all the ways economics was wrong about itself—bias, underpowered research, statistical shenanigans. Nobody wanted…

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Kahneman Shows the Right Way In Getting It Wrong

[From the website Retraction Watch] “Although it’s the right thing to do, it’s never easy to admit error — particularly when you’re an extremely high-profile scientist whose work is being dissected publicly. So while it’s not a retraction, we thought this…

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