Question 1

When the area under the ROC curve is 0.5

Accepted Answer

A)  The diagnostic test is very helpful. 
B)  The diagnostic test is somewhat helpful. 
C)  The diagnostic test is not helpful. 
D)  It cannot be determined from the information given. 
A)  The diagnostic test is very helpful. 
B)  The diagnostic test is somewhat helpful. 
C)  The diagnostic test is not helpful. 
D)  It cannot be determined from the information given.

Question 2

In a logistic regression model, explain how to determine whether a confounder is an effect modifier.

Accepted Answer

An effect modifier can be cons

Question 3

Which one of the following is implied by a screening test with a low sensitivity?

Accepted Answer

A)  The test yields a large number of false positives. 
B)  The test yields a large number of false negatives. 
C)  The test yields a large number of true positives. 
D)  The test yields a large number of true negatives. 
A)  The test yields a large number of false positives. 
B)  The test yields a large number of false negatives. 
C)  The test yields a large number of true positives. 
D)  The test yields a large number of true negatives.

When the area under the ROC curve is 0.5

In a logistic regression model, explain how to determine whether a confounder is an effect modifier.

Which one of the following is implied by a screening test with a low sensitivity?

An Overview of Statistical Concepts

Continuous Data- Making Comparisons

Continuous Data: Correlation and Regression

Categorical Data: Comparisons and Associations

Count Data

Time to Event Data

Filters

Exam 5: A Dichotomous Outcome: Confounding and Regression

When the area under the ROC curve is 0.5

In a logistic regression model, explain how to determine whether a confounder is an effect modifier.

Which one of the following is implied by a screening test with a low sensitivity?

An Overview of Statistical Concepts

Continuous Data- Making Comparisons

Continuous Data: Correlation and Regression

Categorical Data: Comparisons and Associations

Count Data

Time to Event Data

Filters