Information for peer referees

Guidelines for referees

The role of the referee is to provide feedback to authors on the content and design of protocols and reviews.

Peer review is conducted by a variety of people with the aim of incorporating their expert opinion on the clinical, methodological and consumer specific aspects of the protocol or review. Subsequently, the areas of comment may differ between the disciplines eg. a consumer may comment on the difficulties associated with the use of medical language for a lay person whereas this may not be the focus of a clinical or methodological review. The Cochrane Breast Cancer Group (CBCG) therefore encourages each referee to concentrate their comments on the areas of the protocol or review where they feel their input is most appropriate, rather than on every section of the document.

Cochrane breast cancer group policy for peer review
The CBCG has developed the following checklists as a guide for referees conducting peer review of protocols and reviews. This guide has been adapted from checklists produced by the Cochrane Quality Advisory Group.

CBCG checklist for peer review of a protocol

CBCG checklist for peer review of a review

The following checklists are specifically designed for consumer peer referees:

CBCG consumer checklist for peer review of a protocol

CBCG consumer checklist for peer review of a review

Timeframe for peer review
The CBCG will negotiate the timeframe for completion with each referee. The average length of time for a full peer review process is 6-8 weeks, however this varies depending on the number of available referees, the size of the review and other factors such as deadlines for copyediting and module submission. Feedback to authors is anonymous and each individual referee has the option to view the protocol or review a second time to see the amendments that the authors have made in relation to the referees comments.

The Cochrane Collaboration also has developed specific information pertaining to the conduct of peer review. The following is an extract from the Cochrane Reviewer's Handbook http://www.cochrane.org/cochrane/hbook.htm. This handbook also contains other valuable information for anyone considering a role as a peer referee.
If you would like to contribute as a peer referee, please contact Cochrane@ctc.usyd.edu.au

Information from the Cochrane reviewer's handbook:

Peer review
It is important to have efficient arrangements for criticising the reviews prepared by contributors to the Cochrane Collaboration, and for amending reviews in the light of valid criticisms. Opportunities for criticising reviews before they are published in print are restricted by the number and competence of the referees selected by editors. After a review has been printed, opportunities for published criticism are usually limited to the few letters that editors can accept for publication, or to book reviews, that are often unhelpfully brief and non-specific. It is also frustrating that there is no straightforward way in which the authors of printed reviews can amend their reports after taking account of valid criticisms.

The Cochrane Collaboration aims to create an iterative system through which successive versions of each review will reflect not only the emergence of new data, but also valid criticisms, solicited or unsolicited, from whatever source. This process is facilitated by the contact details both for reviewers and for editorial offices in each review. Successive versions of a particular review, together with any intervening criticisms, will be archived electronically.

Refereeing
There are no standard methods for refereeing systematic reviews. However, several general principles merit mention. First, peer review can be useful for several stages of the review process: question formulation, protocol development, completion of the review and updating. Second, peer review should include multiple referees or editors with both methodological and topical expertise, and with differing viewpoints. Some of the peer reviewers or referees should be external to the CRG from which the review originates. Referees should include people without direct financial, intellectual or personal conflicts of interest concerning the topic being addressed. Statements regarding conflict of interest are required in Cochrane Reviews and CRGs may want to require these from referees. Third, explicit standardised methods and checklists aimed at ensuring comprehensiveness and limiting bias should be encouraged among peer- reviewers. Fourth, peer review should be constructive, courteous and timely.

Specific areas to address at each stage of peer review vary. The main issues to consider at question formulation are whether: a) there is any overlap or potential duplication of effort with another reviewer either within or outside the originating review group; b) objectives are clearly phrased and include all of the components of well-formulated questions; and c) the review is likely to be feasible. Review at this stage can often be accomplished quickly by a CRG's editorial team.

Reviewing protocols is more time-consuming, and is done to ensure that background information is rational and clearly presented, and that appropriate methods are planned for identifying, collecting and synthesising data. Peer review at this stage is particularly important to prevent methodological errors that may not be easily remediable at later stages of the review. Peer review at review completion includes a second critique of the review's methods as well as a critique of the actual results, presentation of results, discussion and conclusion. Critiques of completed reviews are best done by multiple individuals, some of whom are external and independent of the CRG. The importance of external peer review of protocols may vary from CRG to CRG and within a CRG from review to review.

Differences among referees' critiques should be elucidated and reconciled whenever possible. Potential mechanisms to use for reconciliation of different critiques are arbitration by one or more of the editors or use of an additional independent referee.

Consumers as Peer Referees:
Consumer feedback is valuable for each protocol and review and the CBCG aims to get at least one consumer to comment on each new submission prior to publication. The process for consumer peer review is the same as that outlined above. Consumer referees contribute an alternative perspective that encompasses knowledge from various but objective viewpoints and which enhances the quality of Cochrane reviews and protocols.

The Cochrane Consumer network has developed specific resources for consumers wishing to participate as peer referees. A full description of the role and steps involved in the process can be found at http://www.cochrane.org/consumers/docs/cochrane.pdf
They have also developed a list of items which may be of relevance when providing consumer feedback on a protocol or review. This can be used in conjunction with the CBCG checklist.

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