How would I describe a group of patients similar to mine?
Which main intervention, prognostic factor, or exposure am I considering?
What is the main alternative to compare with the intervention?
|Outcome you would like to measure or achieve
What can I hope to accomplish, measure, improve, or affect?
|What type of question are you asking?
|Diagnosis, Etiology/Harm, Therapy, Prognosis, Prevention
|Type of study you want to find?
|What would be the best study design/methodology?