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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…
Read MoreIN THE NEWS: The Atlantic (November 19, 2018)
[From the article, “Psychology’s Replication Crisis Is Running Out of Excuses” By Ed Yong, published in The Atlantic] “The Many Labs 2 project was specifically designed to address these criticisms. With 15,305 participants in total, the new experiments had, on…
Read MoreA Primer on Pre-Registration
[From the article “The preregistration revolution” by Brian Nosek, Charles Ebersole, Alexander DeHaven, and David Mellor, published in PNAS] “Progress in science relies in part on generating hypotheses with existing observations and testing hypotheses with new observations. This distinction between postdiction and prediction…
Read MorePre-registration. From clinical trials. To psychology. Next, the world?
[From the article “More and more scientists are preregistering their studies. Should you?” by Kai Kupferschmidt, published in Science] “…Preregistration, in its simplest form, is a one-page document answering basic questions such as: What question will be studied? What is the hypothesis?…
Read MoreIN THE NEWS: NY Times (July 16, 2018)
[From the article “Psychology Itself Is Under Scrutiny” by Benedict Carey, published in the NY Times] “The urge to pull down statues extends well beyond the public squares of nations in turmoil. Lately it has been stirring the air in…
Read MorePostdiction, Prediction, and Preregistration
[From the article, “The preregistration revolution” by Brian Nosek, Charles Ebersole, Alexander DeHaven, and David Mellor, published in Proceedings of the National Academy of Sciences (PNAS)] “Sometimes researchers use existing observations of nature to generate ideas about how the world…
Read MoreReplication: The Debate
On September 29, a public debate was held on the campus of NYU. The subject of the debate was “Do Replication Projects Cast Doubt On Many Published Studies in Psychology?” The debate pitted Brian Nosek, director of the Center for…
Read MoreMAREN DUVENDACK: What are Registered Replication Reports?
Academia has been abuzz in recent years with new initiatives focusing on research transparency, replication and reproducibility of research. Notable in this regard are the Berkeley Initiative for Transparency in the Social Sciences, and the Reproducibility Initiative which PLOS and…
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