CEBM – Study Designs
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Undergraduate |
A short article explaining the relative strengths and weaknesses of different types of study design for assessing treatment effects.
Key Concepts addressed:Details
This short article gives a brief guide to the different study types and a comparison of the advantages and disadvantages. See also Levels of Evidence
These study designs all have similar components (as we’d expect from the PICO):
- A defined population (P) from which groups of subjects are studied
- Outcomes (O) that are measured
And for experimental and analytic observational studies:
- Interventions (I) or exposures (E) that are applied to different groups of subjects