Study Design & Sample Size Helper
A simple, bilingual guide for clinicians planning studies and theses.
Help me choose
Not sure where to start? We'll guide you with examples.
Estimate how common something is
e.g. "What proportion of diabetic patients have retinopathy?"
Compare two groups
e.g. "Does the new treatment lower blood pressure more?"
Find predictors of an outcome
e.g. "Which factors predict mortality in ICU patients?"
I already have data
You already started collecting — let's see what's still possible.