Biostats Flashcards
1
Q
Power
A
1 - chance of a beta error
2
Q
T test
A
Compares two mean quantitative values
3
Q
Chi square
A
Compares two or more categorical variables
4
Q
If a confidence interval includes 1 in an odds or risk ratio
A
this is not statistically significant
5
Q
When is a CI not significant in average difference
A
When it includes 0
6
Q
Clinical trial phases
A
Phase I: healthy patients
Phase II: small number of sick patients
Phase III: Large number of sick patients against placebo
Phase IV: Post-market study
