Frequently Asked Questions
To determine Sample Size, we can use three different approaches:
- checking the reference literature to calculate the sample size using previous studies
- drafting a hypothesis and using it to calculate the required sample size to verify it
- conducting a pilot study so to use its findings to determine the sample size
Preparing a research protocol is complex because it requires different skills, from extensive knowledge in a specific medical field to statistical skills and competences. If in doubt, it is always helpful to ask a professional for advice to reduce the risk of errors and avoid wasting time.