You Are Not So Smart 100 - The Replication Crisis
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Apr 20, 2017 
Brian Nosek, executive director of the Center for Open Science and a leading voice in the reproducibility movement, dives into the hot-button issue of the replication crisis in psychology. He highlights how much psychological research, particularly around ego depletion, fails replication tests. Nosek discusses publication bias, P-hacking, and the need for reform to bolster trust in science. With a mix of humor and insight, he emphasizes the importance of transparency and the value of questioning our scientific beliefs.
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The Radish Versus Cookie Study
- Roy Baumeister's radish vs. cookie experiment showed radish‑eaters quit a puzzle much sooner than cookie‑eaters.
- That original finding launched decades of ego‑depletion research and many follow‑ups.
Large Replications Undermined Ego Depletion
- Replication attempts of ego depletion found little or no effect despite many published positive studies.
- Large multi‑lab replications combining thousands of subjects reported null results for the vanilla ego‑depletion paradigm.
The File‑Drawer Problem
- Publication bias (the file‑drawer effect) skews the literature toward positive results.
- Unpublished null results make whole fields look stronger than they really are.