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Evidence-Based Practice Resource Guide

Find Evidence: Hierarchy of Evidence

Evidence resources in this guide are organized based on publication types within a hierarchy of evidence.                                                                                                                                                                                          Hierarchy of Evidence                           

When searching for evidence to answer clinical questions, aim to identify the highest level of available evidence.

Evidence hierarchies can help you strategically identify which resources to use for finding evidence, as well as which search results are most likely to be "best".

Image source: Evidence-Based Practice: Study Design from Duke University Medical Center Library & Archives. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.