This blog is for peer-reviewers and about peer review. Here we provide information and news about the peer-review process at Nature Publishing Group journals. We also debate the general topic of peer-review, and warmly welcome your feedback and comments. We answer questions about peer review; give guidance about how to peer-review for our journals; and provide a discussion forum for policy and other matters concerning peer-review. This blog also contains the Nature peer review debate which took place during 2006.

You are welcome to contact us by e-mail at 'referees at nature.com' with questions and suggestions of topics to feature on this blog.

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Paying taxes is not a qualification for assessing research programmes

Massimo Pinto has discovered an unusual qualification for being a peer-reviewer: paying your taxes. Since 2006, Italians have been allowed to donate 0.5 per cent of their taxes to charity in a highly specific way (previously, such donations had to be made to the church or the state). On his Nature Network blog Science in the Bel Paese, Dr Pinto points out that one can elect to donate one's contribution to specific research institutes. Leaving aside the fact that some of the intended recipients do not yet seem to have received their 2006 or 2007 contributions, specifying an individual project could have the effect of bypassing the peer-review system, particularly in Italy, where science funding levels are low. Dr Pinto writes that taxpayers have three choices:

--donate to funding agencies. It happens in many countries of the world. As long as the agency is committed to assign that money in a transparent manner, including, possibly, peer review, that should be fine.
--donate to individual institutes. In this way, taxpayers may be exercising a little peer-review power. Less troublesome, perhaps, if the institute acts, internally, as the agency above. Still, it is not obvious why institute A should be so much better than institute B. Maybe the cleverest scientist, with the best idea right now, is in institute B.
--donate to a specific project. Here the taxpayers are exercising bolder peer-review powers, and that raises a red flag

As some institutes have taken to advertising the importance of their research and the difference one's money would make to humanity (no details provided in the advertisements), there is definitely scope for a loophole or two to be closed. As Dr Pinto puts it, "The particular advert that irritated me was a dialogue between two young citizens; one was asking whether the researcher in XYZ University were really going to deliver results, and the other one replied, reassuringly, that they were among the very best in Europe. Donating to them was a guarantee of success."

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Refining and communication of science via blogs

This post is a continuation of the discussion about blogging and peer-review by selected reactions at RealClimate (a climate scientists' community blog) to Nature Geoscience's two commentaries on blogging.

Philip Machanick writes that the "problem with blogs is that there is no way for an outsider to know which are reasonably careful creations of informed scientists, which are opinions of the scientifically illiterate, and which are astroturf creations designed to confuse critics of science that is in conflict with an industry. Given that terrain, I would rather have something like RealClimate than not: it helps to balance things out. Errors tend to be corrected quickly here as a consequence of a large informed readership (even if it is sometimes annoying that you get drive-by ignoramuses who don’t benefit from getting their misconceptions answered). He goes on to suggest that a site such as RealClimate is of value in providing a forum for rebuttals of peer-reviewed science in order to develop a consensus on whether a "formally published rebuttal is worth the effort".

Ray Ladbury's view: "When it comes to peer reviewed papers, one has to presume the reader will have a minimum level of familiarity with the subject matter. One also presumes that the reader will have a day job, and so the question becomes whether the information in the paper is of sufficient interest to the average scientist in the community to say, “Hey, take a look at this. It looks mostly correct to me and has some interesting information/insights/methods…” This is not in any way the gold standard in the sciences. The gold standard comes when the community as a whole says, “Hey, cool, I can use this.” The paper is cited. The techniques are used. Science advances. Eventually, what was in the paper becomes part of the tacit knowledge assumed by reviewers.
The tacit knowledge one can presume for a blog like Realclimate is much lower. One presumes there is an interest in the subject–why else would the reader be perusing the blog. One presumes at least a passing acquaintance with the scientific method and maybe some familiarity with basic results like conservation of energy, etc. One could perhaps assume that the average reader has taken the time to acquaint him- or herself with material to which one is vectored via the “Start Here” button–although this is far from Universal.
For the average newspaper reader of a science story, the tacit knowledge is nearly nonexistent–or worse, wrong. And then we have the blogosphere, where information density is at best, rarified and often toxic.......in an information economy, it seems that all too many readers and journalists are content to remain paupers."

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What the job of an editor is all about

In a comment to an earlier Peer to Peer post, 'Regular Scientist' takes issue with Nature Cell Biology's definition of a good report, writing (slightly edited for length): the journal sometimes asks the authors to undertake many experiments even before sending a paper to review. Not strangely, papers in Nat Cell Biology, even small reports, contain many Supplementary Figures (up to 20, I´ve seen). I miss the old days where publications were for sending a very interesting result so you could extend it and discuss its importance for your field. Nat Cell Biology's system is undermining research efforts in the authors´ labs, which have to dedicate an enormous effort to provide many additional experiments that don´t even add much to the concept. This is not what science, and the peer-review process, should be about. I would recommend the editors of Nat Cell Biol a calm reading of the original paper on the structure of nucleic acids, and note the way it was written.

Bernd Pulverer, Chief Editor of Nature Cell Biology, has kindly agreed to my request to write a guest post to respond, and to elaborate on the journal's practices and policies:

As ‘Regular scientist’ points out, we do strive to publish rather well-developed studies in Nature Cell Biology. It is interesting to read the concern about the supplementary information, since we usually hear the opposite complaint: namely that the tight format restrictions applied preclude presentation of complete datasets. In considering submissions, we expect fewer details of molecular mechanistic analysis if the paper reports a highly novel observation. And because the study of cell biology tends to throw up surprising new findings that deserve a wide audience but that cannot be developed in a reasonable timeframe, we decided some years ago to publish a short ‘Brief Communication’ format, which I hope is appreciated by Regular Scientist.
In the Editorial under discussion, we wrote:

Nevertheless, the most important part of the report is assessment of the data: are key experiments or crucial controls missing? Are the data significant and definitive? Are all claims made supported by the data? A black and white model should not be a requirement — in fact it often underestimates biological complexity. Formulate a clear set of recommendations for additions or improvements. Experimental suggestions are important even if an outright rejection is recommended, as it makes for a transparent and constructive report that will allow the author to improve the dataset and select an appropriate target journal. If the overall assessment is positive, do not feel obliged to ask for non-essential experiments. New experiments should add key information, buttress claims or improve existing data, and they must be achievable. Indeed, the perception that referees invariably ask for more data encourages some authors to hold back data in the hope that these will be requested and can then be provided by return post; clearly, this is a futile exercise. Referees and editors alike should take great care that all key issues are raised in the first assessment — draw a line and adhere to it. Subsequent evaluations may raise issues on new data, but raising yet more ways to develop a study is not fair.

We, the Nature Cell Biology editors, agree that one can always ask for more data, and that sometimes data require an unrealistic amount of effort for the information added. However, we entirely disagree that our editorial and review process does not result in the publication of much-improved datasets. The tendency of referees to feel an obligation to ask for some new data, and conversely for authors to hold back data to give referees something obvious to ask for, is an issue that we tried to address in the Editorial.
We certainly do not ask for more data because we, the editors, feel under any compulsion to do so: the simple fact is that a good number of manuscripts submitted to the journal are rather premature, and we cannot justify wasting our referee’s time when we perceive obvious holes in a dataset that the referees would invevitably want to be addressed. We believe that this step is in an author’s interest, since we will not undertake multiple rounds of peer-review without good reason. If requested data are deemed to be unobtainable for technical reasons, or indeed unnecessary, we are always willing to hear an author’s arguments.
Regarding the 1953 Nature paper that Regular Scientist recommends: indeed, the paper is a good read. However, science has become much more complex since then, and the discoveries often more detail-oriented, requiring a more in-depth analysis. At the same time, the tools available have developed tremendously in 55 years. Even in 1953, readers will note that Watson and Crick's conclusions depended on the two following papers in the issue, providing experimental details. The challenge is to set ‘the bar’ correctly to what is achievable and what should be achieved for publication in a top-flight journal. This is what the job of an editor is all about.

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To many, blog posts are the face of science

Continuing the discussion of the relative contributions of blogs and the peer-reviewed literature to scientific understanding, I'm highlighting another reaction to the two Nature Geoscience Commentaries presenting different perspectives.
In the comment thread at Real Climate blog, Simon Donner of the University of British Columbia writes:

"Blogs have created a forum for many people to informally discuss science. They are also a great forum for scientists to provide context to their own work and to the work of others in their field.
And some of the time, that may take the form of criticism. That’s ok. But we do have to be careful in blurring the line too much between peer-reviewed publications and blogs. The first problem is the obvious one. Blog posts are unfiltered, un-reviewed, and often written off the cuff, while journal articles are screened, reviewed, and (should be) meticulously researched. It is far easier to write a criticism of a paper on one’s blog than to write a response and submit it to the journal. The issue isn’t just that no reviewers check the work… the blog author is unlikely to do even close to the amount of research and analysis nor give the wording nearly the same level of consideration as is expected in a paper submitted to a high-quality, peer-reviewed journal.
The other problem is that blog posts are readily accessible to anyone at anytime, both in language, and in the unlicensed nature of the internet. To a huge swath of the public, blog posts are the face of science. Like it or not, bloggers with scientific credentials are like self-appointed ambassadors for science. If we are going to write about our science, we should do it with thought, and we should do it well. That is a standard that myself and many other science bloggers often struggle to meet."

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Judge's ruling protects confidentiality

From Nature 452; 677; 2008:
A federal magistrate in Massachusetts last week ruled that The New England Journal of Medicine (NEJM) does not have to comply with a subpoena issued by Pfizer forcing the journal to provide confidential peer-review documents related to the painkillers Celebrex (celecoxib) and Bextra (valdecoxib).
The drug firm had tried to compel the journal to hand over peer reviews and internal editorial discussions for 11 papers on the painkillers. It argued that these would help it defend the arthritis drugs in lawsuits alleging that they caused heart attacks and strokes (see Nature 452, 6–7 ; 2008 and this post on Spoonful of Medicine blog).
In his 12-page opinion, Leo Sorokin wrote that the material Pfizer sought seemed relevant on first examination, but that “NEJM's interest in maintaining the confidentiality of the peer-review process is a very significant one … and tip[s] the scales in favor of the NEJM" .
The judgement comes three weeks after an Illinois judge ruled against Pfizer after it issued almost identical subpoenas to The Journal of the American Medical Association and Archives of Internal Medicine.
The Nature journals' guidelines for reviewers state: "Reviewers should be aware that it is our policy to keep their names confidential, and that we do our utmost to ensure this confidentiality. Under normal circumstances, blind peer-review is protected from legislation. We cannot, however, guarantee to maintain this confidentiality in the face of a successful legal action to disclose identity in the event of a reviewer having written personally derogatory comments about the authors in his or her reports. For this reason as well as for reasons of standard professional courtesy, we request reviewers to refrain from personally negative comments about the authors of submitted manuscripts. Frank comments about the scientific content of the manuscripts, however, are strongly encouraged by the editors."
We are advised that if peer-reviewers follow this advice, it would be extremely unlikely that there could be legal grounds to force their identities to be revealed.

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Sharing insights with researchers

The two Nature Geoscience Commentaries expressing opposing views on blogging's role in science research communication have been much discussed in the blogosphere (see Climate Feedback blog, for example.). One discussion took place at RealClimate blog, where Gavin Schmidt's post about his Nature Geoscience view on how science blogs and traditional peer-review intersect has attracted more than 100 online comments from climate scientists and others.
One commenter, "Tamino", writes: "Blogs don’t serve very well for communication among scientists. Peer review does more than just protect us from being inundated with substandard work; it protects authors from their own mistakes and improves the quality of what we write. Peer review itself is an immensely valuable avenue of communication; who among us hasn’t at some time included a phrase like “We thank an anonymous referee for comments and suggestions which dramatically improved the final manuscript”?
But as bad as blogs are for actual research, peer-reviewed journals are far worse for communicating with and educating the lay reader. Yet when it comes to climate science the lay public is hungry for knowledge, and many of them are eager, and well-prepared, for a level of sophistication and detail that can’t be found in lay journalism or even popular literature; An Inconvenient Truth isn’t enough. So blogs serve an incredibly useful purpose, enabling the interested and well-educated reader to share insights with researchers who are at the cutting edge of new knowledge.....................while blogs aren’t part of the machinery for legitimate scientific research, they’re an indispensible tool for communication and combating misinformation."

More to follow.

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Will NIH's overhaul be cosmetic or curative?

The first phase of the NIH review of the peer-review system was completed on 28 February , when the final draft of the 2007–2008 Peer Review Self-Study was submitted to NIH (US National Institutes of Health). In advance of NIH's announcement this Spring about the changes to be implemented, this month's (April) Editorial in Nature Medicine (14, 351; 2008) explores whether the NIH recommendations of a major overhaul of the system are likely to be cosmetic or curative.
The grant review process is onerous for both applicants and reviewers. According to the report, the success rate of first-time applicants (for A0 grants) is on the order of eight per cent. On average, investigators submit a grant three times before securing funding. Reviews can vary dramatically depending on the study section, and funding decisions often seem arbitrary. From a reviewer's standpoint, applications are long and numerous (about seven per reviewer), and the large time commitment dissuades many of the best-qualified people from participating in a process that lacks uniform review criteria, consistency and, arguably, objectivity. The report identifies seven main challenges to enhancing NIH peer review, each of which is described in the Nature Medicine Editorial. But, as the Editorial points out, the problem of too many researchers chasing too few dollars remains. More money won't alleviate administrative burden or improve the quality of reviews.
NIH's Enhancing peer-review report and next steps can be viewed here.