Quality of evidence grades
| Grade | Definition |
| High | High level of confidence in the strength of the existing findings demonstrating reliability, validity and clinical utility of the tool(s) for use in the assessment of SRC. |
| Moderate | Moderate level of confidence in the strength of the existing findings demonstrating reliability, validity and clinical utility of the tool(s) for use in the assessment of SRC. |
| Low | Low level of confidence in the strength of the existing findings demonstrating reliability, validity and clinical utility of the tool(s) for use in the assessment of SRC. |
| Very low | Very Low level of confidence in the strength of the existing findings demonstrating reliability, validity and clinical utility of the tool(s) for use in the assessment of SRC. |
Quality of evidence is a continuum; any discrete categorisation involves some degree of arbitrariness. Nevertheless, advantages of simplicity, transparency and vividness outweigh these limitations.
SRC, sport-related concussion.