Clinical Trials Flashcards
1
Q
Why must vaccines and drugs be subjected to clinical trials?
A
To establish their safety and effectiveness before being licensed for use
2
Q
How and why are subjects in clinical trials divided?
A
They are divided into into randomised groups to minimise bias in the distribution of age, gender, etc.
3
Q
Describe a double-blind trial:
A
Neither the subjects nor the researchers know which group that subjects are in to prevent biased interpretation of the results
4
Q
Why is group size important in trials?
A
Reduces experimental error and establishes statistical significance
