Sample size: How to estimate the number of participants/observations you may need? 2/12/16 Flashcards
1
Q
How can we summarise the effect of an exposure on a binary outcome?
A
odds ratio
2
Q
What does a 95% confidence interval contain?
A
- contains a true effect 95% of the time
3
Q
If the null effect is not contained with in 95% confidence interval then at what percentage is the effect significant?
A
at the 5% level
4
Q
What is the mean?
A
the average value
5
Q
What is the standard deviation?
A
variability of a value
