Nursing Essay

Strength of Evidence Level Table to be used for Part C of Task

(this information is also found in your Course of Study)

Strength of Evidence

Hierarchy

Types of Studies

(these items do not go into Table C)

Level I

Meta-analysis

• Meta-analysis

Level I

Systematic Review

• Systematic Review

Level I

National Practice Guidelines

• National Practice Guidelines

Level I

Integrative Review

• Integrative Review

Level II

Randomized Control Trial

• Randomized Control Trials

Level III

Quasi-Experimental

• Quasi-Experimental studies

Level IV

Non-experimental

• Retrospective

• Case controlled

• Cross-sectional

• Cohort-comparison

• Prospective

• Descriptive

• Correlational

Level V

Meta-synthesis

• Meta-synthesis

Level VI

Qualitative

• Qualitative Studies

Level VII

Expert Opinions

• Narrative Reviews

• Quality Improvement Projects

• Case Studies

• Reports from expert committees

• Opinions from experts

• Specialists opinions

• Editorials