When critically appraising research, there are a number of checklists available from CASP for different types or research. However, none of these checklists include questions to help address possible racial bias.
Ramona Naicker, a medical librarian in Australia, has developed a checklist specifically to help identify any issues around underrepresentation and interpretation that may impact on a study's relevancy, validity and reliability.
The tool can be used as a supplement to another checklist (such as one of the CASP checklists) that look at specific research methodologies.