|1||Systematic Review or meta-analysis of RCTs (randomized control trials)|
|2||Randomized control trials|
|7||Expert opinions: reports from expert panels and organizations, not based on research|
Adapted from LoBiondo-Wood, G. & Haber, J. (2022). Nursing research: Methods and critical appraisal for evidence-based practice (10th ed.). Elsevier.