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Peer Review Highly Sensitive To Poor Refereeing

$RANDOMLUSER writes "A new study described at Physicsworld.com claims that a small percentage of shoddy or self-interested referees can have a drastic effect on published article quality. The research shows that article quality can drop as much as one standard deviation when just 10% of referees do not behave 'correctly.' At high levels of self-serving or random behavior, 'the peer-review system will not perform much better than by accepting papers by throwing (an unbiased) coin.' The model also includes calculations for 'friendship networks' (nepotism) between authors and reviewers. The original paper, by a pair of complex systems researchers, is available at arXiv.org. No word on when we can expect it to be peer reviewed."

37 of 233 comments (clear)

  1. The climate skeptics will have a field day by Anonymous Coward · · Score: 4, Interesting

    This is precisely what the global warming skeptics say is happening with the global warming alarmist community. ie. scientists review each others' papers, in a 'co-operative' manner as it were.

    I think I'll point some skeptics at this paper and then sit back with a bowl of popcorn and watch what happens.

    1. Re:The climate skeptics will have a field day by oiron · · Score: 3, Insightful

      Well, peer-review the junk ideas out (aka, vote on the economic aspects). The science is pretty well settled, but the economics is not so clear (as if it ever really is).

      Come up with better solutions, implement them if you can, support good solutions if you can't. The problem isn't going away by denying it because you don't like the currently proposed solutions.

      That, we can discuss. "Global cooling in the 1970s" is just noise in the channel.

    2. Re:The climate skeptics will have a field day by sycodon · · Score: 3, Insightful

      The thing is that the "fix" is plain and simple, it's just rejected out of hand by the Envirowhackos because it doesn't involve government running our lives, a reduction in the standard of living, and allows for more growth and prosperity: Nuclear power.

      Now comes all the posts about peak uranium that ignore technology like breeders and thorium.

      Then comes everyone who thinks all reactors are built like Chernobyl.

      Next are high level waste folks who don't understand what reprocessing does.

      Last, but not least, are all the people who equate a nuclear reactor with a nuclear bomb.
       

      --
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    3. Re:The climate skeptics will have a field day by The+Warlock · · Score: 3, Insightful

      Oh please. Let's face it, it's easy for the government to ignore environmental concerns; they've been doing that for years. The real barrier is the general public that's okay with nuclear power as long as the power plant isn't near their neighborhood, as long as trains carrying fuel or waste don't go anywhere near their house. They'd love them some cheap electricity, sure, but just build it near some other people.

      --
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    4. Re:The climate skeptics will have a field day by oiron · · Score: 3, Informative

      Speaking as someone who's at least read up on this stuff (not an expert, but definitely an informed layman), such large-scale adoption of nuclear power comes with its own problems. For one, building such plants is going to be extremely costly, and probably can't be done in time to make a useful difference.

      You talk about reprocessing, but even after that, you eventually end up with some radioactive waste products, to say nothing about radiation leakage into the environment.

      Finally, I think it's just yet another "all our eggs in one (radioactive) basket" solution. I'd rather have a wide range of options, from renewables like wind, solar or geothermal, to, yes, nuclear power where that's appropriate.

      It's difficult to comprehend why a place with ample local generation capability (say, solar power in the Thar desert in India) should go with an expensive nuclear power plant, when the alternative is cheaper, and a more efficient use of resources readily available (as opposed to resources mined from the ground a few thousand kilometers away in another continent), as you "nuclear only" types keep coming up with.

    5. Re:The climate skeptics will have a field day by techno-vampire · · Score: 3, Informative

      You left one out: ignorant fools who conflate highly radioactive waste products with wastes with long half-lives. If you listen to them, you come away with the impression that the wastes from a reactor stay Highly Radioactive for thousands of years, ignoring the fact (if they're even aware of it) that unstable isotopes are either highly active or have long half lives, never both, because the two qualities are mutually incompatable.

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    6. Re:The climate skeptics will have a field day by P0ltergeist333 · · Score: 3, Informative

      As usual, the strong caveat at the end of the article goes unnoticed:

      But Tim Smith, senior publisher for New Journal of Physics at IOP Publishing, which also publishes physics world.com, feels that the study overlooks the role of journal editors. "Peer-review is certainly not flawless and alternatives to the current process will continue to be proposed. In relation to this study however, one shouldn't ignore the role played by journal editors and Boards in accounting for potential conflicts of interest, and preserving the integrity of the referee selection and decision-making processes,"

      IRL the reviewers are not chosen at random. Which burns the straw men built by the summary, most of the article, and the skeptics.

      --
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  2. Highly political subjects? by AnonymousClown · · Score: 4, Insightful

    "The system provides an opportunity for referees to try to avoid embarrassment for themselves, which is not the goal at all," he says.

    So, if a reviewer sees a paper that has actual data and a conclusion that goes against the consensus of the scientific community, the reviewer may reject it for fear of appearing foolish? Or rejecting someone just because of their publicized personal beliefs?

    Here's a hypothetical, a climate scientist who's an openly devout Christian finds data that sheds doubt on human caused global warming will be rejected because someone's afraid of looking foolish.

    That's the way I'm interpreting this study.

    --
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    July 4, 1776 - September 11, 2001

    1. Re:Highly political subjects? by MozeeToby · · Score: 5, Insightful

      Can anyone give me a good reason why the reviewers get information about the author in the first place? Granted, there are disciplines that are closed knit to the point that the reviewers would recognize the author based on their past work, but in most cases I would think not knowing who the author is would address at least some of the issues that they highlighted here. It's hard to obscure the rest of the review process but limiting nepotism should be relatively simple.

    2. Re:Highly political subjects? by ElektronSpinRezonans · · Score: 3, Informative

      A referees rejection can be overruled by the editor. It's his job to choose referees that will understand the research and make sure they are just.

    3. Re:Highly political subjects? by prefect42 · · Score: 5, Informative

      It is done as you've guessed, but it's still often obvious who the author is. Don't forget that sometimes a bad review has nothing to do with knowing who the author is. If you come across a paper that's done almost exactly the same work as you have done, or criticises your work, you could choose to give it a false bad review to try to prevent it from being published. I've seen papers that have received three reviews, two that say it's good, and one that says it's nowhere near worthy of being published. You often question the outliers.

      --

      jh

    4. Re:Highly political subjects? by Trepidity · · Score: 4, Interesting

      As a computer scientist, my impression is that the program committees really are pretty random, or at least based on some sort of preference other than a widely agreed "quality" standard. Try it sometime: resubmit a paper rejected from a top CS conference verbatim to another top CS conference. The correlation between the reviews is usually quite low, both in terms of the numerical scores, and especially in terms of what they liked / complained about.

    5. Re:Highly political subjects? by DriedClexler · · Score: 5, Insightful

      Granted, there are disciplines that are closed knit to the point that the reviewers would recognize the author based on their past work

      Pardon my naivete, but I don't think such fields should exist. They present an extremely hazard for groupthink and inbred rubber-stamping.

      Any speciality should bend over backwards to maintain close ties with the surrounding fields of research so that others will understand how it relates and better be able to detect when bad practices are becoming standard. And it is vanishingly unlikely that this super sub-speciality will *never* stumble upon a problem isomorphic to a well-studied one in a distant field.

      It's because of this "oh this is a hard subfield, stay off my turf" mentality that causes things like ecologists *just now* starting to use the method of adjacency matrix eigenvectors (i.e. PageRank) to identify critical spiecies, despite the method having been known to mathematicians for 40 years.

      Hey scientists: science is a group process. You're special, but you're not that special. Please build off of the existing work. Don't compartmentalize. Good science connects, and connects deeply. Yours should too.

      --
      Information theory is life. The rest is just the KL divergence.
    6. Re:Highly political subjects? by Trepidity · · Score: 3, Interesting

      The poor review assignment at large conferences contributes to that effect as well, I think. I almost always have at least one of three reviewers, and sometimes even two of three, give a noncommittal review along the lines of, "well this isn't really my area, but it seems pretty good". Those reviews basically are non-reviews, so the acceptance decision is then entirely up to the remaining one or two reviewers. So it often comes down to: did the one person who actually provided an opinion on your paper like it or not like it?

      In my experience that's often pretty subjective, especially for conferences with tight length limits (standard in AI is six pages). If the reviewer personally found the paper to be on an interesting subject with an interesting approach that he/she felt should be investigated, almost any shortcomings can be excused, and the reviewer will conclude that "Overall, this paper provides a valuable contribution to an important ongoing discussion in this area." But if the reviewer doesn't like it, finds it boring, dislikes the approach, etc., it's easy to find something that had insufficient detail, didn't sufficiently distinguish from related work, didn't sufficiently motivate the problem or investigate/validate the applications, etc., etc., since you really can't fit that much in six pages.

  3. Review content matters by lymond01 · · Score: 3, Informative

    When you're talking about scientific papers, a "bad apple" reviewer may be able to skew the record in terms of 1-10 scales, but reviewers also do a qualitative write-up of the material. That's really the only important part and if one or two people fall outside the line of general consensus, they'll just be ignored.

    1. Re:Review content matters by Shrike82 · · Score: 5, Interesting

      Well that's not always the case. Different journals have different review processes. Some ask for numerical choices on a scale, others want choices in terms of "strongly agree", "somewhat agree" etc. for specific questions, others want only written comments and a final choice. Even this final choice is different in many cases, sometimes restricted to Accept, Accept with minor corrections, Accept with major corrections, Invite for resubmission and simply Reject, while others take the final choice as an aggregate of multiple choice responses or numerical averages. Some systems are obviously easier to be biased with than others.

      Regardless of all this though, sometimes you'll find out that only two of three reviewers responded, and at least one of those probably got one of their postdocs or even a PhD student to do the review. Some reviews will have empty parts where a reviewer was supposed to write a paragraph but couldn't be bothered, or because they didn't want to reveal the fact that they were totally unfamiliar with the subject matter. Getting a journal paper published is more hit and miss than you'd think. I used to think that a good paper with good ideas was enough, but it's not always the case.

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  4. Not to mention "autarkistic" research communities by Anonymous Coward · · Score: 3, Interesting

    I mean scientists who publish among themselves, i.e. inside their narrow specialty, in their own journals, without checking whether the problem at hand has been solved elsewhere. This is more and more common as people get more specialized, and can lead to very basic errors propagated inside the whole community, like rheologists believing in the existence of pure elongational flow (a trivial misunderstanding of tensor algebra). Since the peers reviewing the papers are members of the same community, those errors usually get unnoticed.

  5. It's part of automating the process. by Remus+Shepherd · · Score: 5, Interesting

    Just this week, I was asked to peer review a paper in which I was mentioned in the Acknowledgments. The request was sent out automatically -- the journal has records of all their authors, and the keywords for this paper matched the keywords in my profile, so I was picked to review it.

    I recused myself, but really I should never have been asked. If they're going to handle the peer review process automatically, the artificial intelligence that makes the decisions needs to be improved.

    --
    Genocide Man -- Life is funny. Death is funnier. Mass murder can be hilarious.
    1. Re:It's part of automating the process. by starless · · Score: 5, Insightful

      Except that I've heard of people deliberately adding people to acknowledgements to try to make sure they don't get those people as referees (and it hasn't worked)!

  6. Re:Just like the Slashdot moderation system by spikenerd · · Score: 5, Interesting

    Slashdot let's you publish first, and be reviewed later. The peer-review system used by scientists forces them to work on their papers until someone finally "mods" it acceptable. Imagine how much faster science could advance if we had a system that actually let scientists focus on research, let people trained in technical writing do the reporting, and let Google design a post-publication moderation system to sort out the useful advances from the career posturing. Science could learn a lot from Slasdot. It is simply ignorant that we continue to put up huge barriers to publication.

  7. Re:just like /.? by alvinrod · · Score: 5, Insightful

    As much crap as /.'s moderation system gets, it actually tends to be one of the better systems I've seen on the net. First of all, it's highly customizable so if I wanted to I can easily set it to add or remove value from certain types of moderations. I usually bump flamebait and troll up a few pegs just so I can see the posts that do occasionally get unfairly moderated. I can also add other posters I find interesting to a list and bump up their post value so if I'm interested in what they have to say I can always make sure I'll see it.

    I also think that the community goes a long way towards making the system work well. Sure there will always be people who abuse the system and moderate posts with which they disagree as flamebait, etc. but the community as a whole does a good job of promoting interesting lines of conversation and for any given topic there are probably a few people in the community who specialize in that area and can provide some excellent commentary.

    It's not perfect, but it's probably one of the best systems in actual practice that's currently being used.

  8. Bit of an arbitrary model by gnutrino · · Score: 4, Informative
    First off in case anyone is in doubt this study use a model of peer review - no experiment or observation of an actual peer review process was done. That's not to say interesting and enlightening things can't come from modeling but in this case the moldel they use seems very questionable and highly arbitrary. This part in particular is highly dubious:

    Each reviewer produces a binary recommendation within the same timestep: ’accept’ or ’reject’. If a paper gets 2 ’accept’ it is accepted, if it gets 2 ’reject’, it is rejected, if there is a tie (1 ’accept’ and 1 ’reject’) it gets accepted with a probability of 0.5.

    If a single 'bad' reviewer (i.e. one that gives the 'wrong' answer as determined by the 'correct' method of reviewing mentioned as a control in the paper) can cause a paper to have a 50:50 chance of acceptance or rejection it doesn't seem too suprising to me that a relatively small number of them could cause the process to become '[not] much better than by accepting papers by throwing (an unbiased) coin' - because in their model, in the case of a reviewer disagreement, that's exactly what is happening!

  9. Re:Climategate for example by oiron · · Score: 4, Informative

    Broken record time, but yes. Such subversion of the peer review process did show up. The culprits weren't the ones you expect.

    In general however, I think that this study is rather pessimistic. And anyway, it hasn't been peer reviewed, so who knows... ;-)

    (yes, I did read TFA, but not the paper

  10. This is not news to scientists by Kurofuneparry · · Score: 3, Insightful

    The peer review system is great for regulation, standardization and unification. However, all scientists that I've worked with/researched with/spoken with much about this topic admit that the system can be annoyingly flawed by group think and conformity. One bad apple ruins the bunch, right?

    The good news? While this part of the scientific community is not immune to problems, the slack is picked up elsewhere: As long as methods, data and results are transparent, reproducible and published we can actually have quality science.

    I often speak to people about scientific research and they're shocked that it's not full proof. This is kind of like buying software (perhaps even a Microsoft product) and finding that it's not perfect. Science is done by committee and progresses slowly. "If we know what we were doing, it wouldn't be called research" ~Albert Einstein

    Then again, I'm an idiot....

    --
    ...... and idiots rule the world....
  11. Doing something unprecedented by oiron · · Score: 5, Interesting

    I actually read the comments on TFA, and down at , there's a particularly interesting one:

    This study overlooks not only the role of the editor, but also the process in which the authors are able to answer the referees' objections. When the referees are competent, this leads to better papers through useful suggestions. On the other hand, when they aren't, overcoming the exasperation of the authors, their objections are easily brushed away, and the paper eventually gets through. Also, when the case is particularly contentious, there's still the option of calling for an adjudicator. In summary, the peer-review process is far more complex than this simulation might suggest. On the dark side, I’ve also noticed that referees are sometimes reluctant to object papers from certain renowned authors. The human factor is hard to remove. I guess many people will agree that there’s a need to look for better approval systems, specially today, when there’s an explosion of submissions. However we must also acknowledge that the present system has served its purpose of maintaining a certain quality.

    There's actually a reasonably intelligent discussion going on in there...

  12. Using Professors' Egos to your advantage... by happy_place · · Score: 4, Interesting

    My dad (has PhD in a scientific field from Cornell) told me that when submitting a thesis to a review board of professors, it really doesn't matter how "Tough" a professor is as long as that professor in your committee has a rival. Take advantage of their ego with an equally assertive ego. You purposefully choose the rival professor to join your committee as well. Then they'll spend all the review board discussions and presentations contradicting and arguing one with another, and in the end they'll both be so incensed, that they cancel each other out, and it doesn't matter what you presented... I guess the TFA is only pointing out that this occurs at the publishing level as well.

    --
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  13. Re:This reminds me of something else by Farmer+Tim · · Score: 3, Funny

    Some ignoramus actually removed all chemical equations from the Smelting article.

    At least they didn't replace the whole thing with "Who smelt it dealt it".

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  14. Re:The Social Text Affair by iris-n · · Score: 4, Informative

    Social Text is emphatically not prominent nor was peer-reviewed at the time of the affair.

    http://en.wikipedia.org/wiki/Sokal_affair

    While the Sokal affair is interesting, it has nothing to do with the matter at hand.

    --
    entropy happens
  15. Is this news to scientists? by 0123456 · · Score: 3, Insightful

    Peer review only works if the reviewers can be trusted and don't form a clique to get their work in and keep other people out. Surely anyone with even basic knowledge of human psychology would understand this?

  16. Pity the internet is full of cranks by sam_handelman · · Score: 3, Insightful

    Because this is an important question for serious people, but has no bearing on why various cranks (Intelligent Design people, climate change "skeptics", Time Cube, etc.) may have trouble getting their work in print. Papers by such people generally don't end up in the peer review phase - they aren't sent out for evaluation by the journal, so peer review doesn't matter.

      That said, peer review provides substantially the same benefit as those "shoplifters will be prosecuted" signs you see in department stores.

      Shoplifters are very seldom if ever actually prosecuted - but the threat, even the vaguest menace - of public scrutiny has an impact on behavior. I'm not talking about scientific fraud (which peer review will seldom catch,) but about quality of reasoning, doing the needed controls, etc. We may have a system that rewards good research little-better than an unbiased coin, but the <b>perception</b> that it works, or that it might work for you, motivates people to do the work needed to survive peer-review.

    --
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  17. Re:just like /.? by MozeeToby · · Score: 5, Insightful

    I think it comes down to two things.

    First, the relative rarity of mod points encourages people to take it seriously. It also encourages the most active, most interesting posters to give up posting once in a while to moderate. Most other sites use a mod system that allows so many votes per article but still don't allow you to post and mod the same article. That means that the most frequent posters will seldom mod and that there can be people who only ever mod articles without ever commenting on them.

    Second, attaching a reason to the mods encourages people to actually think about why they are modding the way that they are. As many people say, there is no "-1 I Disagree" mod, in order to mod someone down you have to be saying that they are actively trying to derail the conversation. Of course, lots of modders will ignore that and mod however they want, but I think that it does make at least some people stop and think before they accuse someone else of being flamebait or a troll.

  18. Re:Just like the Slashdot moderation system by thePsychologist · · Score: 3, Insightful

    Letting technical writing people doing the writing won't work. A large part of the scientific writing is the discussion of the experiment, which not only helps the scientist clarify his or her own thoughts and gives insight into future experiments, but also really only is worth reading if the scientist or members of the experimental team do it themselves. Technical writers really only would have the ability to write the experimental procedure, and even then it would be hard. Since science is so specialized you'd have to have technical writers for thousands of subdisciplines, etc. This goes especially true for mathematics, where the writing procedure is very closely related to doing mathematics.

    Already because of this, no time for the scientist would be saved. A Google moderation system would have two problems. First, it wouldn't save any time because you still have to have some person doing the reviewing, and secondly you have to have someone qualified doing the reviewing whom you can trust to some extent to review in confidence, for otherwise if there are certain major problems with the paper but a few good ideas, they can be "stolen" by others, which may become a problem.

    --
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  19. Re:You mean whine when a POS paper is printed by oiron · · Score: 4, Insightful

    I agree with all that you said, but for heaven's sake, use full-forms at least once

    For those as confused as I, the paper the parent refers to is "Gerhard Gerlich, Ralf D. Tscheuschner. Falsification of the atmospheric CO2 greenhouse effects within the frame of physics.".

    Contains such howlers as "There's no such thing as average temperature"... RC Wiki page

  20. Re:just like /.? by Trepidity · · Score: 4, Interesting

    I've long thought there should be a "-1, Disagree" option in the drop-down box that takes a mod point but has no effect.

  21. Re:just like /.? by tophermeyer · · Score: 3, Interesting

    But the proper way to communicate disagreement should be to respond with a reasoned counterargument, the goal being to show the justification for your disagreement and allow future readers the benefit of seeing your reasoning.

    A "-1 Disagree" mod is anonymous censorship at it's worst. It adds nothing to the discourse. If all that you can add to the discussion is "I Disagree", then you can't add anything of merit to the discussion.

  22. Re:You mean whine when a POS paper is printed by radtea · · Score: 4, Interesting

    Contains such howlers as "There's no such thing as average temperature"...

    Why is that a howler? It seems like uncontroversial physics if by "no such thing" you mean it has no physical meaning.

    If I take two bodies, one with temperature T1 and one with temperature T2, what is their average temperature? If you say (T1+T2)/2 you are mathematically correct, but thermodynamically incoherent.

    There is in general no thermodynamically meaningful way of averaging temperatures, which is why we should be talking about atmospheric heat content, not temperature, and why ocean temperatures--which are rising--are by far the most plausible evidence for increasing heat content in the troposphere.

    --
    Blasphemy is a human right. Blasphemophobia kills.
  23. I call shenanigans on this one by pesho · · Score: 4, Informative
    Chances are that this paper is not going to pass peer review. A brief read paper shows that they don't even attempt to validate the model with real data (too lazy for real research I guess). Their model is also overly simplistic to the point of stacking the deck towards proving that peer review is bad. The reviewer role is simplified to an accept/reject decision, which has nothing to do with reality. They completely eliminate the revision step in the peer review process, where authors address either through new experiments or through argument the comments of the reviewers. If you look at the 'characters', what they call a 'rational' reviewer looks more like a 'bastard' reviewer. They completely ignore the possibility that a reviewer can make suggestions that improve the paper.

    I have several publications that were significantly improved through the peer review process. When I review papers my goal is not to shoot down the work, rather I try find ways to improve it. Of course there are 'bad' reviewers, who think that reviewing a paper is shredding it to pieces. These are actually easy to spot, because they rarely suggest anything useful and are often ignored by the journal editors. Speaking of which, journal editors are yet another part of the peer review process that is missing from their model