General

Question 1

What is sensitivity?

Answer 1

Rate of true positive diagnosis

Given that patient has the disease, probability that it will be diagnosed correctly

sensitivity = true positives / (true positives + false negatives)

Question 2

What is specificity?

Answer 2

Rate of true negative diagnosis

Given that patient does not have the disease, probability that it will be diagnosed correctly

specificity = true negatives / (true negatives + false positives)