A tool for assessing Risk Of Bias due to Missing Evidence in a synthesis

Welcome to the website for the ROB-ME tool.

A preliminary version of the tool is available for piloting purposes. If you are interested in piloting ROB-ME, please read the full guidance document beforehand, and complete your assessment using the Word template. Once you have completed your assessment, please email the completed template, along with this feedback form, to Matthew Page at

We anticipate that the ROB-ME tool will be modified in response to feedback from the pilot. Therefore, we discourage use of the tool in systematic reviews or methodological studies until the final version is released.