Calculations Flashcards
1
Q
How do you work out sensitivity?
A
TP/TP + FN
A high senstivity means low type 2 error
1 is maximum
2
Q
How do you work out specificity?
A
TN/TN + FP
A high specificity means low alpha error
1 is maximum
3
Q
How do you work out efficiency?
A
All the correct answers/all the answers
4
Q
Positive predictive value
A
TP/TP + FP
5
Q
negative predictive value
A
TN/TN+FN
6
Q
How do you work out a percentage increase?
A
Work out the difference between the two numbers and divide this by the original and then X 100
