 This paper presents a new tool for assessing the methodological quality of studies reporting prevalence data in systematic reviews of prevalence. The tool was developed following consultation with an expert panel and then piloted among an experienced group of researchers. The results of the pilot showed that the tool was accepted and easy to use. Further refinements were made based on participant feedback. This tool can now be used by authors conducting prevalence systematic reviews. This article was authored by Zachary Munn, Sundi Mula, Dagmar Ritano and others.