a systematic and structured process of assessing the quality, validity, and relevance of research studies. It involves examining the study’s design, methods, data analysis, results, and conclusions to identify strengths, weaknesses, potential biases, and the reliability of the findings. This process helps researchers, clinicians, and policymakers determine whether evidence is trustworthy and applicable to their context.
Synonyms: Evidence Appraisal, Study Appraisal
Example
A health policy team is reviewing multiple clinical trials on a new arthritis medication. They conduct a critical appraisal of each study, using a standardized checklist (e.g., CASP) to evaluate randomization, blinding, sample size, statistical analysis, and outcome reporting. This allows them to judge which studies provide the most reliable evidence for making recommendations.