Meta-analysis roadmap flowchart showing 10 steps from PICO question to PRISMA 2020 reporting

How to Conduct a Meta-Analysis: Complete Step-by-Step Guide

TL;DR: A meta-analysis pools effect estimates from multiple studies into one weighted result. The twelve-step path runs from a PICO question through a systematic search, dual-reviewer screening with a PRISMA flow diagram, standardized data extraction, risk-of-bias assessment (RoB 2 or ROBINS-I), effect-measure selection, a random-effects or fixed-effect model, forest-plot pooling, heterogeneity (I²) and publication-bias testing (Egger’s test), GRADE certainty rating, and PRISMA 2020-compliant reporting. Free…

Test

test

STROBE Guidelines Simplified: A Complete Tutorial for Reporting Observational Studies (2026)

An observational study can have a flawless design and still stumble in peer review if the write-up leaves out how confounders were handled, how participants were selected, or how much data went missing along the way. STROBE guidelines exist to close that gap for cohort, case-control, and cross-sectional research. STrengthening the Reporting of OBservational studies in Epidemiology, the checklist’s full name, gives authors a structured…

Preprint Servers Explained: bioRxiv vs medRxiv vs SSRN – Complete Guide for Researchers (2026)

If you have ever finished a manuscript and wondered whether to share it before peer review, you have already been thinking about preprint servers. These platforms allow researchers to post their work publicly before — or alongside — formal journal submission, accelerating scientific communication in ways that traditional publishing simply cannot match. With major funders like the NIH now actively encouraging preprint deposition, and platforms…

The MDPI Controversy Explained: Is MDPI a Predatory Publisher? What Every Researcher Must Know (2026)

If you have ever submitted to an MDPI journal, received an unsolicited invitation to contribute to an MDPI special issue, or seen MDPI labeled as “predatory” in an online forum, you have encountered one of the most debated controversies in academic publishing today. The Multidisciplinary Digital Publishing Institute — better known as MDPI — is simultaneously one of the world’s largest open-access publishers and one…