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Cautionary Tales – Homo Deceptus: Science’s Dirty Little Secret In 1912, a fossil discovery shakes the scientific world. Piltdown Man is the elusive missing link between humans and their ape-like ancestors. Forty years, and countless scientific articles later, …

I appreciated this episode of @TimHarford's #CautionaryTales this morning, which compared the #PiltdownMan hoax to the #DataColada vs. Gino/Ariely debacle: timharford.com/2025/11/cautionary-tales...

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Z-Curve.3.0 Tutorial: Chapter 5 - Replicability-Index Chapter 5 compares z-curver to p-curve using the same simulation design as Chapter 4. You can find links to the other chapters on the post with Chapter 1. zcurve3.0/Tutorial.R.Script.Chapter5.R at mai...

#MetaScience #DataColada
Have you seen a p-curve analysis of the Reproducibility Project? A whooping 91%. No wonder they claim:
“Many have been referring to this period as psychology’s “replication crisis.” This makes no sense.” (Nelson et al., 2018, p. 512).
replicationindex.com/2025/07/29/z...

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[73] Don't Trust Internal Meta-Analysis - Data Colada Researchers have increasingly been using internal meta-analysis to summarize the evidence from multiple studies within the same paper. Much of the time, this involves computing the average effect size...

#statstab #369 Don't Trust Internal Meta-Analysis

Thoughts: I don't agree with all the assumptions, but interesting to know how bad these can be.

#metaanalysis #QRPs #minimeta #datacolada #falsepositive #replication

datacolada.org/73

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#datacolada

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