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Mass Reproducibility and Replicability: A New Hope

Abel Brodeur, Derek Mikola () and Nikolai Cook
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Derek Mikola: Carleton University

No 16912, IZA Discussion Papers from Institute of Labor Economics (IZA)

Abstract: This study pushes our understanding of research reliability by reproducing and replicating claims from 110 papers in leading economic and political science journals. The analysis involves computational reproducibility checks and robustness assessments. It reveals several patterns. First, we uncover a high rate of fully computationally reproducible results (over 85%). Second, excluding minor issues like missing packages or broken pathways, we uncover coding errors for about 25% of studies, with some studies containing multiple errors. Third, we test the robustness of the results to 5,511 re-analyses. We find a robustness reproducibility of about 70%. Robustness reproducibility rates are relatively higher for re-analyses that introduce new data and lower for re-analyses that change the sample or the definition of the dependent variable. Fourth, 52% of re-analysis effect size estimates are smaller than the original published estimates and the average statistical significance of a re-analysis is 77% of the original. Lastly, we rely on six teams of researchers working independently to answer eight additional research questions on the determinants of robustness reproducibility. Most teams find a negative relationship between replicators' experience and reproducibility, while finding no relationship between reproducibility and the provision of intermediate or even raw data combined with the necessary cleaning codes.

Keywords: reproduction; replication; research transparency; open science; economics; political science (search for similar items in EconPapers)
JEL-codes: B41 C10 C81 (search for similar items in EconPapers)
Pages: 246 pages
Date: 2024-04
New Economics Papers: this item is included in nep-dem and nep-sog
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