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Push button replication: Is impact evaluation evidence for international development verifiable?

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Many studies lack reproducible research methods, hindering scientific credibility. A push button replication project found only 27% of audited articles were verifiable, indicating a gap in open research practices.

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Area of Science:

  • Economics, development, and public health research.

Background:

  • Reproducibility is crucial for research credibility, yet many empirical studies face challenges in verification.
  • The push button replication project addresses the credibility challenge posed by non-reproducible research.

Purpose of the Study:

  • To audit the reproducibility of empirical research across various academic fields.
  • To assess the comparability of findings from replication attempts to original published results.

Main Methods:

  • Developed and piloted a detailed protocol for conducting push button replication.
  • Sampled articles from top journals publishing impact evaluations in low- and middle-income countries (2010-2012).
  • Selected and analyzed articles published in 2014 meeting specific inclusion criteria.

Main Results:

  • Only 27 out of 109 audited articles (25%) were 'push button replicable'.
  • Replication files were refused by authors for 59 articles, with 30 non-compliant with journal requirements.
  • Issues included proprietary data (3), incomplete files (15), and minor result discrepancies (5).

Conclusions:

  • A significant gap exists in the adoption of open research norms among economics, development, and public health researchers.
  • Journals are not effectively enforcing requirements for replication file availability, impacting research transparency.