Question

What is the classification of studies based on the level of evidence?

1) Level 1: Systematic review and meta-analysis
2) Level 2: Randomized controlled trial (RCT) or Experimental study
3) Level 3: Quasi-experimental study
4) Level 4: Mixed-methods systematic review and qualitative meta-synthesis
5) Level 5: Descriptive correlational, predictive correlational, and cohort studies
6) Level 6: Descriptive study and qualitative study
7) Level 7: Opinions of expert committees and authorities

Answer 1

Studies are classified based on the level of evidence. The levels range from systematic reviews and meta-analyses to expert opinions.

Step-by-step explanation:

The classification of studies based on the level of evidence is as follows:

1. Level 1: Systematic review and meta-analysis
2. Level 2: Randomized controlled trial (RCT) or Experimental study
3. Level 3: Quasi-experimental study
4. Level 4: Mixed-methods systematic review and qualitative meta-synthesis
5. Level 5: Descriptive correlational, predictive correlational, and cohort studies
6. Level 6: Descriptive study and qualitative study
7. Level 7: Opinions of expert committees and authorities