Sensitivity/Specificity/PPV/NPV Practice

Question 1

The Proportion of Non-Diseased Animals the test Correctly Classifies as Negative

Answer 1

Specificity

Question 1

Test with Poor Sensitivity Produces a lot of _____

Answer 1

False Negatives

Question 2

Measuring Sensitivity Produces What Two Results?

Answer 2

True Positive

False Negative

Question 3

How do you Calculate Sensitivity

Answer 3

(# Diseased that Test Positive/ # Diseased Tested)

Question 3

Measuring Specificity Produces what Two Results

Answer 3

True Negative

False Positive

Question 4

_____ is Estimated by Testing Non-Diseased Animals

Answer 4

Specificity

Question 5

The Proportion of Test Negative Animals that are Non-Diseased

Answer 5

Negative Predictive Value

Question 5

How Do you calculate Selectivity Using this Chart?

Answer 5

Question 6

Equations

Answer 6

Question 6

Calculate Sensitivity and Specificity

Answer 6

Question 7

Answer 7

1. Many True Positive Test Results

Question 9

_______ is Estimated by Testing Diseased Animals

Answer 9

Sensitivity

Question 9

How do you calculate Specificity using this Chart?

Answer 9

Question 12

How do you Calculate Specificity

Answer 12

(# of Non Diseased that Test Negative/ #Non Diseased Tested)

Question 13

Calculate the Sensitivity and Specificity using the Chart

Answer 13

Question 15

The Proportion of Test Positive Animals that are Diseased

Answer 15

Positive Predictive Value

Question 16

Answer 16

2. Many True Negative Test Results

Question 17

Answer 17

Low Specificity

Question 18

How do you calculate PPV using this Chart?

Answer 18

Question 20

Proportion of Diseased Animals that the Test Correctly Classifies as Positive

Answer 20

Sensitivity

Question 21

Answer 21

Low Sensitivity

Question 22

Calculate PPV and NPV

Answer 22

Question 23

How do you calculate NPV using this Chart?

Answer 23