Evidence-Based Medicine: Experimental & Observational Studies

URL: https://libguides.cmich.edu/cmed/ebm

Definitions of Clinical Studies

Experimental Studies

Randomized Controlled Trial (RCT)

        o    Clinical Trial, Phase IV 

        o    Clinical Trial, Phase III 

        o    Clinical Trial, Phase II

        o    Clinical Trial, Phase I 

        o    N-of-1 Trials 

        o    May include Multicenter Study 

Non-Randomized Controlled Studies

Observational Studies

Cohort Study (or Longitudinal Study or Prospective Study) 

        o    Observational Study 

        o    May include Multicenter Study 

Case-Control Study  

        o    May include Multicenter Study 

Case Series

Case Report 

       o   Case Study

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