Sensitivity And Specificity

Question 1

What is the definition of sensitivity

Answer 1

The probability of a positive result if the patient has the target disorder

Question 2

What is the definition of specificity

Answer 2

The probability of a negative result when the patient does not have the target disorder

Question 3

What is a likelihood ratio

Answer 3

How much more likely are patients with the target disorder to have a result compared to patients without the target disorder

Question 4

What is the definition of the positive predictive value

Answer 4

The probability that after a positive result, the person screened actually has the target disorder

Question 5

What is the definition of the negative predictive value

Answer 5

The probability that after a negative result, the person screened actually does not have the target disorder

Question 6

What increases the chance for a false positive

Answer 6

How rare the disorder is

Question 7

What is true about the sensitivity & specificity of a diagnostic test

Answer 7

Near 100% sensitivity & specificity