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IN THE NEWS: Undark (November 20, 2019)

[Excerpts taken from the article “A Team Approach to Tackling the Psychology Replication Crisis” by Dalmeet Singh Chawla, published in Undark] “In 2008, psychologists proposed that when humans are shown an unfamiliar face, they judge it on two main dimensions:…

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Changes at the American Journal of Agricultural Economics

[Excerpts taken from the article “Editor’s Corner”, by Travis Lybbert, published in The Exchange, the newsletter of the Agricultural & Applied Economics Association] “In my time as AJAE editor over the past four years, an interesting crisis for our profession –…

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Replication Crisis? What Replication Crisis?

[Excerpts taken from the article “No Crisis but No Time for Complacency” by Wendy Wood and Timothy Wilson, published in Observer Magazine] “The National Academies of Sciences, Engineering, and Medicine recently published a report titled Reproducibility and Replicability in Science….

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Could Bayes Have Saved Us From the Replication Crisis?

[Excerpts are taken from the article “The Flawed Reasoning Behind the Replication Crisis” by Aubrey Clayton, published at nautil.us] “Suppose an otherwise healthy woman in her forties notices a suspicious lump in her breast and goes in for a mammogram….

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Another Journal Adopts the “Pottery Barn Rule”

[From the editorial “SA Editorial About Next Phase of More Open Science” by Michael Seto, published in the journal Sexual Abuse] “It is now widely recognized that there are publication biases toward novel and exciting findings, which has contributed to a replication…

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Disagreeing With Disagreeing About Abandoning Statistical Significance

[From the preprint “Abandoning statistical significance is both sensible and practical” by Valentin Amrhein, Andrew Gelman, Sander Greenland, and Blakely McShane, available at PeerJ Preprints] “Dr Ioannidis writes against our proposals to abandon statistical significance…” “…we disagree that a statistical…

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It’s Not A Problem, It’s an Opportunity

[From the blog “The replication crisis is good for science” by Eric Loken, published at The Conversation] “Science is in the midst of a crisis: A surprising fraction of published studies fail to replicate when the procedures are repeated.” “Is…

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Using Z-Curve to Estimate Mean Power for Studies Published in Psychology Journals

[From the blog “Estimating the Replicability of Psychological Science” by Ulrich Schimmack, posted at Replicability-Index] “Over the past years, I have been working on an … approach to estimate the replicability of psychological science. This approach starts with the simple…

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Picking Significant Estimates to Replicate Can Induce “Replication Crisis”-Like Results

[From the paper “Statistical Methods for Replicability Assessment” by Kenneth Hung and William Fithian, posted at ArXiv.org. Note that H&K’s paper is primarily concerned with presenting an empirical procedure for addressing questions about replicability after correcting for selection bias. This…

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When Trying to Explain p-Values, Maybe Try This?

[From the blog “P-values 101: An attempt at an intuitive but mathematically correct explanation” by Xenia Schmalz, posted at Xenia Schmalz’s blog] “…what exactly are p-values, what is p-hacking, and what does all of that have to do with the replication crisis?…

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