Archives des mots-clés : Misha Teplitskiy

Does double-blind peer review reduce bias? Evidence from a top computer science conference

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Authors : Mengyi Sun, Jainabou Barry Danfa, Misha Teplitskiy

Peer review is essential for advancing scientific research, but there are long-standing concerns that authors’ prestige or other characteristics can bias reviewers. Double-blind peer review has been proposed as a way to reduce reviewer bias, but the evidence for its effectiveness is limited and mixed.

Here, we examine the effects of double-blind peer review by analyzing the review files of 5,027 papers submitted to a top computer science conference that changed its reviewing format from single- to double-blind in 2018.

First, we find that the scores given to the most prestigious authors significantly decreased after switching to double-blind review. However, because many of these papers were above the threshold for acceptance, the change did not affect paper acceptance significantly.

Second, the inter-reviewer disagreement increased significantly in the double-blind format.

Third, papers rejected in the single-blind format are cited more than those rejected under double-blind, suggesting that double-blind review better excludes poorer quality papers.

Lastly, an apparently unrelated change in the rating scale from 10 to 4 points likely reduced prestige bias significantly such that papers’ acceptance was affected.

These results support the effectiveness of double-blind review in reducing biases, while opening new research directions on the impact of peer-review formats.

URL : Does double-blind peer review reduce bias? Evidence from a top computer science conference

DOI : https://doi.org/10.1002/asi.24582

The Social Structure of Consensus in Scientific Review

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Authors : Misha Teplitskiy, Daniel Acuna, Aida Elamrani-Raoult, Konrad Kording, James Evans

Personal connections between creators and evaluators of scientific works are ubiquitous, and the possibility of bias ever-present. Although connections have been shown to bias prospective judgments of (uncertain) future performance, it is unknown whether such biases occur in the much more concrete task of assessing the scientific validity of already completed work, and if so, why.

This study presents evidence that personal connections between authors and reviewers of neuroscience manuscripts are associated with biased judgments and explores the mechanisms driving the effect.

Using reviews from 7,981 neuroscience manuscripts submitted to the journal PLOS ONE, which instructs reviewers to evaluate manuscripts only on scientific validity, we find that reviewers favored authors close in the co-authorship network by ~0.11 points on a 1.0 – 4.0 scale for each step of proximity.

PLOS ONE’s validity-focused review and the substantial amount of favoritism shown by distant vs. very distant reviewers, both of whom should have little to gain from nepotism, point to the central role of substantive disagreements between scientists in different “schools of thought.”

The results suggest that removing bias from peer review cannot be accomplished simply by recusing the closely-connected reviewers, and highlight the value of recruiting reviewers embedded in diverse professional networks.

URL : https://arxiv.org/abs/1802.01270

Amplifying the Impact of Open Access: Wikipedia and the Diffusion of Science

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Authors : Misha Teplitskiy, Grace Lu, Eamon Duede

With the rise of Wikipedia as a first-stop source for scientific knowledge, it is important to compare its representation of that knowledge to that of the academic literature. This article approaches such a comparison through academic references made within the worlds 50 largest Wikipedias.

Previous studies have raised concerns that Wikipedia editors may simply use the most easily accessible academic sources rather than sources of the highest academic status. We test this claim by identifying the 250 most heavily used journals in each of 26 research fields (4,721 journals, 19.4M articles in total) indexed by the Scopus database, and modeling whether topic, academic status, and accessibility make articles from these journals more or less likely to be referenced on Wikipedia.

We find that, controlling for field and impact factor, the odds that an open access journal is referenced on the English Wikipedia are 47% higher compared to closed access journals. Moreover, in most of the worlds Wikipedias a journals high status (impact factor) and accessibility (open access policy) both greatly increase the probability of referencing.

Among the implications of this study is that the chief effect of open access policies may be to significantly amplify the diffusion of science, through an intermediary like Wikipedia, to a broad public audience.

URL : Amplifying the Impact of Open Access: Wikipedia and the Diffusion of Science

Alternative location : http://onlinelibrary.wiley.com/doi/10.1002/asi.23687/full