The Open Science Collaboration replicated each of the 100 psychology studies only once using roughly the original sample sizes, and when researchers applied that same low-powered design to a data set where each study had been replicated with more than 30 times the original number of participants, the resulting replication rate was even lower than the OSC's.
Sources
- Study that undercut psych research got it wrong (news.harvard.edu)
- https://www.science.org/doi/10.1126/science.aad7243 (science.org)
- https://thehardestscience.com/2016/03/03/evaluating-a-new-critique-of-the-reproducibility-project/ (thehardestscience.com)
- https://www.bps.org.uk/psychologist/replication-glass-half-full-half-empty-or-irrelevant (bps.org.uk)
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