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Published on: July 16, 2016
Why replication has more scientific value than original discovery
1Departments of Medicine,Health Research and Policy, and Biomedical Data Science,Stanford University School of Medicine,Stanford,CA 94305;Department of Statistics,Stanford University School of Humanities and Sciences,94305;Meta-Research Innovation Center at Stanford (METRICS),Stanford University,Stanford,CA 94305.jioannid@stanford.eduhttps://profiles.stanford.edu/john-ioannidis.
Original discovery is often overvalued compared to replication. A scientific model reveals that original discovery claims typically hold little value, emphasizing that replication is crucial for scientific worth.
Area of Science:
- Scientific methodology
- Research validation
Background:
- The traditional view prioritizes novel findings over replication.
- This prioritization is questioned in contexts where initial discoveries are not consistently accurate.
Purpose of the Study:
- To analyze the value of original discovery versus replication in science.
- To model the economic and validation value of scientific claims.
Main Methods:
- Development of a theoretical model to assess the value of scientific claims.
- Analysis of the conditions under which original discoveries are valuable.
Main Results:
- Original discovery claims often have minimal or negative value.
- The value of science is predominantly derived from successful replication.
Conclusions:
- Re-evaluation of the emphasis on original discovery is needed.
- Replication plays a more critical role in establishing scientific validity and worth than commonly presumed.
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