Jump to a clinical scenario
or walk through the triage
Step Answer this question
What type of outcome variable are you analysing?
This is the variable you measured — your dependent variable. The answer routes you to the correct test family.
How to use the Test Selector
Click any scenario above to jump directly to a result, or start the guided triage by answering the question below. Each result shows the recommended test, when to use it, key assumptions, a formula, a clinical nephrology example, common pitfalls, and what to do if assumptions are violated.
The four triage questions — outcome type, number of groups, independent or paired design, and normality — route you to the correct test. If you choose incorrectly, use the Back button to retrace your steps.