14 CHAPTER 1 The What, Why, and How of Biostatistics in Medical Research
1.5 EXERCISES
- What is a Kaplan – Meier curve?
- For what kind of data do you compute Kaplan – Meier curves?
- Why is randomization important in clinical trials?
- What does Greenwood ’ s method refer to?
- Why do we compute p - values? When is it good for p - values to be small
and when is it all right if they are large? - What are cross - sectional studies and why are they uncommon in medical
research? - What are retrospective studies?
- What are prospective studies?
- What are controlled clinical trials and why is blinding important?