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Evidence-Based Practice: Study Design

Study Design

Hierarchy of Evidence
Credits:
This information was developed by staff at Duke University Medical Center Library and the Health Sciences Library at the University of North Carolina at Chapel Hill.

Study Design
Oxford University. This page gives a brief comparison of the advantages and disadvantages of the different types of study.
Clinical Study Design and Methods Terminology

Hierarchy of Evidence

The type of question will often dictate the best study design to address the question:

Levels of Evidence

Levels of Evidence and Grades of Recommendations
Oxford-Centre for Evidence Based Medicine
Strength of recommendation taxonomy (SORT): a patient-centered approach to grading evidence in the medical literature.
Am Fam Physician. 2004 Feb 1;69(3):548-56. PubMed PMID: 14971837