MSTA112 · Week 16 Prelab

Statistical Test Decision Tree

Choose the test by walking the tree. Outcome first. Comparison second. Pairing and adjustment before the test name.

Anas H. Alzahrani, MD PhD MPH · Department of Preventive Medicine and Public Health · Faculty of Medicine, King Abdulaziz University

Start from scratch

The test is the last step, not the first thought.

This prelab is a branching decision tree. Students answer one diagnostic question at a time. Each choice reveals the next fork until the correct statistical test, model, effect estimate, and common wrong turn appear.