The Use of Statistics in Clinical Trials
After completing this module, you should be able to:
- Formulate a null hypothesis from the study objective
- Distinguish between type I and type II errors
- Estimate the effect multiplicity has on the magnitude of type I errors
- Define the intent-to-treat principle
- Explain the role of interim analyses
- Estimate how significance level and other design parameters impact sample size
- Interpret statistical tests
- Distinguish statistical significance from clinical relevance
Scientific Hypothesis Testing
- Key element of clinical trials
- Statistical evaluation of therapeutic intervention