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Studies and Experiments

Reproducibility Project: Psychology

Also Known As Open Science Collaboration Study
Quantitative Psychology

The Reproducibility Project: Psychology was a large-scale 2015 initiative, organized by the Open Science Collaboration and the Center for Open Science, that attempted to replicate 100 psychology studies originally published in three major journals, becoming the signature empirical demonstration of psychology's replication crisis. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Key Finding
Among the studies that did replicate successfully, the replicated effect sizes averaged about half the magnitude of the original studies' effect sizes. 1
Key Finding
Of 97 original studies with a statistically significant result, only 36 percent produced a significant result on replication, and the replicated effect sizes averaged about half the magnitude of the original findings. 1
Study Year
2015 1
Method
Study Design
Systematic Review or Meta-Analysis 1
Participants
Human Adults 1
Connections

Associated With

Replication Crisis, Theories and Concepts
Source Wikipedia: Replication crisis

Conducted By

Brian Nosek, Psychologists
Source Wikipedia: Replication crisis

In Branch

Quantitative Psychology, Branches of Psychology
Source Wikipedia: Replication crisis
In the Other Atlases

Found In

United States

Also in Geography Atlas: where this subject is found.

Source Wikipedia: Reproducibility Project
Sources
1. Wikipedia: Replication crisis
Wikipedia
  • In psychology section
    Coordinated by psychologist Brian Nosek, researchers redid 100 studies in psychological science from three high-ranking psychology journals (Journal of Personality and Social Psychology, Journal of Experimental Psychology: Learning, Memory, and Cognition, and Psychological Science). Of 97 original studies with significant effects, 36% replicated successfully (p value below 0.05), with effect sizes averaging half the original magnitude.
  • lead section, study-design
    Psychology and medicine have been focal points for replication efforts, with researchers systematically reexamining classic studies to verify their reliability and, when failures emerge, to identify the underlying causes.
  • In Branch: Quantitative Psychology, Reproducibility Project scope section
    Coordinated by psychologist Brian Nosek, researchers redid 100 studies in psychological science from three high-ranking psychology journals
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