This is what happened when psychologists tried to replicate 100 previously published findings

The headline result from the new Reproducibility Project report is that whereas 97 per cent of the original results showed a statistically significant effect, this was reproduced in only 36 per cent of the replication attempts. Some replications found the opposite effect to the one they were trying to recreate.

Research Digest

While 97 per cent of the original results showed a statistically significant
effect, this was reproduced in only 36 per cent of the replications

After some high-profile and at times acrimonious failures to replicate past landmark findings, psychology as a discipline and scientific community has led the way in trying to find out more about why some scientific findings reproduce and others don’t, including instituting reporting practices to improve the reliability of future results. Much of this endevour is thanks to the Center for Open Science, co-founded by the University of Virginia psychologist Brian Nosek.

Today, the Center has published its latest large-scale project: an attempt by 270 psychologists to replicate findings from 100 psychology studies published in 2008 in three prestigious journals that cover cognitive and social psychology: Psychological Science, the Journal of Personality and Social Psychology, and the Journal of Experimental Psychology: Learning, Memory and Cognition.

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