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Sanford Library Resources - Evidence Based Practice : Evidence Based Practice - Nursing Focus

Creating Answerable Questions using PICO (TT)

How to Create A My NCBI Account

Hierarchy of Evidence Based on Study Design


Most programs would not use ALL of these options, but a variation of PICO, PICOT, PICOTT, or PICOTS. 

Created by Physicians. Richardson, E.S., Wilson, M. C., Nishikawa, J., & Hayward R. S. The well-built clinical question: A key to evidence-based decisions. ACP Journal Club. PMID 7582737

AJN - American Journal of Nursing EBP

  • Evidence-Based Practice, part I: Developing and Searching the Clinical Question 
  • Evidence-Based Practice, part II: Critical Appraisal of the Evidence 
  • Evidence-Based Practice, part III: Implementation 
  • Evidence-Based Practice, part IV: Disseminating the Evidence and Sustaining the Change


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