Rachel Bennett, MPH

Evidence Synthesis Consultant

Rachel Bennett is an evidence synthesis consultant who helps researchers conduct systematic reviews and meta-analyses in healthcare and social sciences. Her work includes designing search strategies, evaluating study quality, synthesizing findings, and preparing manuscripts for publication. Rachel is passionate about making research accessible and ensuring that evidence is presented clearly and accurately.

Areas of focus

Systematic review
Meta-analysis
Search strategy design
Study quality appraisal
Manuscript preparation

How the analysis is checked

Every guide and tool Rachel reviews follows the standard methods set out in the Cochrane Handbook for Systematic Reviews of Interventions and in Borenstein, Hedges, Higgins, and Rothstein, Introduction to Meta-Analysis. The pooling behind our calculators is validated against the metafor package in R and statsmodels in Python, so the numbers line up with what a statistician reproduces by hand. You can read more about how we calculate and check every result.

Guides by Rachel Bennett

May 29, 2026 · 9 minWhat Is a Meta-Analysis? A Researcher’s GuideA practical, end-to-end explanation of what a meta-analysis is, how studies are pooled and weighted, and when combining them is appropriate.Read guide May 26, 2026 · 8 minNumber Needed to Treat, ExplainedHow the number needed to treat is calculated from the absolute risk reduction, how to interpret it, and how it is derived from a pooled meta-analysis.Read guide April 28, 2026 · 8 minSystematic Review vs Meta-Analysis: The DifferenceWhy a systematic review is the whole rigorous process and a meta-analysis is only the optional statistical step that pools the results within it.Read guide

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