Library of risk of bias tools

QATSDD

Study design(s) targeted by the tool Mixed methodsmixed-methods Observational studies (mixed designs)observational-studies Randomized controlled trials (RCT)randomized-controlled-trial-rct
Additional details on designs Mixed methods studies or multiple study designs
Tool area Health
Link to the tool Access the paper reporting the QATSDD tool

Details

Website
Primary publication Sirriyeh R, Lawton R, Gardner P, Armitage G. Reviewing studies with diverse designs: the development and evaluation of a new tool. J Eval Clin Pract. 2012;18(4):746-52.
DOI 10.1111/j.1365-2753.2011.01662.x
Guidance document
Training

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

Language English
Translations

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

Record last updated 04/06/2026

Related tools and Publications

Previous versions

None

Updated versions

QuADS

Related tools

None

Evaluations

Paper reporting the tool also includes an evaluation of the reliabiltiy and validity of the tool.

Other publications

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

Key Criteria

Focuses on risk of bias, or makes a distinction between items that assess risk of bias and other aspects of study quality No
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 No