Library of risk of bias tools

Recommended by LATITUDES COSMIN ROB

Study design(s) targeted by the tool Reliability studiesreliability-study
Additional details on designs COSMIN Risk of Bias checklist for reliability or measurement error of outcome measurement instruments.
Tool area Health
Link to the tool Get the COSMIN tool

Details

Website https://www.cosmin.nl/
Primary publication Mokkink LB, Boers M, van der Vleuten CPM, Bouter LM, Alonso J, Patrick DL, de Vet HCW, Terwee CB. COSMIN Risk of Bias tool to assess the quality of studies on reliability or measurement error of outcome measurement instruments: a Delphi study. BMC Medical Research Methodology. 2020;20(293).
DOI https://doi.org/10.1186/s12874-020-01179-5
Guidance document COSMIN Guidance
Training

See website for latest training: COSMIN Training Resources

Language English
Translations

None known – please contact us if you are aware of any translations that should be listed here.

Record last updated 03/06/2026

Related tools and Publications

Previous versions

None

Updated versions

None

Related tools

COSMIN ROB for PROMS

Evaluations

None known – please contact us if you are aware of any evaluations that should be listed here.

Other publications

COSMIN related publications are available on the COSMIN Website

Key Criteria

Focuses on risk of bias, or makes a distinction between items that assess risk of bias and other aspects of study quality Yes
Offers a method to reach either a domain specific or overall assessment of risk of bias Yes
Tool developed for use across topic areas (i.e. not developed for specific clinical area such as physiotherapy or dentistry) Yes
Avoids recommending use of summary numerical quality scores Yes