General oto statistics

Question 1

Define sensitivity.

Answer 1

The ability of the test to identify correctly those patients with the disease

Question 2

Define specificity.

Answer 2

The ability of the test to identify correctly those patients without the disease

Question 3

Is high sensitivity or high specificity most important for a screening test?

Answer 3

Sensitivity

Question 4

Define a type 1 error.

Answer 4

The chance of testing positive among those without the

condition; false-positive rate = 1 specificity.

Question 5

Define a type 2 error.

Answer 5

The chance of testing negative among those with the

condition; false negative rate = 1-sensitivity.

Question 6

Define positive predictive value.

Answer 6

The chance of having the condition among those that test positive

Question 7

Define negative predictive value.

Answer 7

The chance of not having the condition among those that test negative