Ewch i’r prif gynnwys


Mae'r cynnwys hwn ar gael yn Saesneg yn unig.

Useful definitions, manuals, checklists and guides for systematic reviewers.

Critical appraisal tools

Tools to help identify the many ways that error and bias can distort research results.


These descriptions are taken from the Glossary of Cochrane Collaboration, a global independent network of researchers, professionals, patients, carers, and people interested in health.

Systematic review methodologies

Learn more about the methodological assessment tools used in systematic reviewing.

Reporting standards

Find helpful guidance for systematic reviews and mata-analyses.

Reviewing & developing search strategies

For helpful guidance on reviewing and developing search strategies.