When reading the full text of each article identified for inclusion in the review as part of the Data Extraction process, apply a Critical Appraisal Tool (CAT) to each study selected for inclusion.
Generally, the critical appraisal step will consider:
It is best however, to use the critical appraisal checklist or worksheet that is most appropriate to the study type included in the Systematic Review.
See the critical appraisal guides, checklists and worksheets below.
These can be downloaded and used to assess the applicability, reliability and validity of published research:
JADAD - Jadad quality assessment scale for rating Randomized Controlled Trials- permits a rank of the studies in the Systematic Review allowing a score to be calculated, based on quality.
1. Jadad, A., et al. (1996). Assessing the quality of reports of randomized clinical trials: is blinding necessary?. Controlled Clinical Trials, 17(1), 1-12. Available: doi:10.1016/0197-2456(95)00134-4