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Change the wording of bias judgements from ‘Yes/No/Unclear’ to ‘Low/High/Unclear risk of bias’
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Implemented in RevMan version 5.1 and Cochrane Handbook version 5.1.0
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Introduce category headings for selection, performance and detection, attrition, reporting, and other bias
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Implemented in RevMan version 5.1 and Cochrane Handbook version 5.1.0
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Split the assessment of blinding into: 1) participants and personnel; and 2) outcome assessment
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Implemented partially in RevMan version 5.1 and Cochrane Handbook version 5.1.0. Full structural implementation scheduled for RevMan version 6
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Clarify guidance, particularly for incomplete outcomes and selective outcome reporting, and ‘other sources of bias’
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Guidance improved in Cochrane Handbook version 5.1.0. Further guidance development ongoing
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Produce clearer and more explicit guidance on incorporation of RoB assessments into meta-analyses
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Further guidance development ongoing
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Weight RoB graphs by study size
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Scheduled for RevMan version 6
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Provide an algorithm for reaching a summary assessment of risk of bias per study/outcome
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Working group established in 2012 to develop RoB tool 2.0 with signalling questions introduced into the tool to help guide assessors to make a domain-based judgement in a more structured way
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Develop online guidance and training materials including an online frequently asked questions and a bank of worked examples of assessments
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Working group tasked with the development of RoB tool 2.0
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Assess how frequently Cochrane Review Groups include non-randomized studies in their reviews
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Survey completed in 2012 as part of the development of the RoB tool for non-randomized studies
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Develop a RoB tool for the assessment of non-randomized studies
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The development of the RoB tool for non-randomized studies started in March 2012 and is expected to finish by the end of 2014
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