Reproducibility Project

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The Reproducibility Project: Psychology was a collaboration completed by 270 contributing authors to repeat 100 published experimental and correlational psychological studies to see if they could get the same results a second time.[1] It showed that only 39 percent of replications obtained statistically significant results.[2][3] While the authors emphasize that the findings reflect the reality of doing science and there is room to improve reproducibility in psychology, they have been interpreted as part of a growing problem of "failed" reproducibility in science.[4][5][6] There was no evidence of fraud and no evidence that any original study was definitely false. The conclusion of the collaboration was that evidence for frequently published findings in psychological science was not as strong as originally claimed. This may be a result of pressure to publish and a hypercompetitive culture across the sciences that favor novel findings and provide little incentive for replicating findings.[7]

One earlier study found that around $28 billion worth of research per year in medical fields is non-reproducible.[8]

See also


  1. "Estimating the reproducibility of psychological science". Science. 349 (6251): aac4716. August 28, 2015. doi:10.1126/science.aac4716. PMID 26315443. Retrieved September 12, 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. "Brian Nosek's Reproducibility Project Finds Many Psychology Studies Unreliable - The Atlantic". Retrieved August 27, 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. "OSF". Https:. Retrieved August 27, 2015.CS1 maint: extra punctuation (link)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  4. "Why most published research findings are false". PLoS Med. 2: e124. August 2005. doi:10.1371/journal.pmed.0020124. PMC 1182327. PMID 16060722.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  5. Bec Crew. "Scientists tried to replicate 100 psychology experiments and 64% failed". ScienceAlert.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  6. Elizabeth Gilbert (27 August 2015). "We found only one-third of published psychology research is reliable – now what?". The Conversation.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  7. Carey, Benedict. "Many Psychology Findings Not as Strong as Claimed, Study Says". The New York Times. Retrieved September 12, 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  8. "PLOS Biology".<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>