Stats Flashcards
1
Q
How do you calculate the sensitivity of a test
A
True positive / True Positives + False negatives
2
Q
How do you calculate the specificity of a test
A
True negatives / True negatives + false positives
3
Q
How do you calculate the specificity of a test
A
True negative / True negatives + false positives
4
Q
How do you calculate positive predictive value of a test
A
True positive / true positive + false positives
5
Q
How do you calculate negative predictive value of a test
A
True negatives / true negative + false negative
6
Q
What is the usual measure in cohort studies
A
relative risk
7
Q
What is the usual measure in case control studies
A
Odds ratio
