ASM201 Module 6 Quiz and answers
already passed 2025
Sensitivity and specificity of a screening test refer to its: - correct answers
Successful treatment programs that would shorten the duration of a disease
primarily affect: - correct answers the prevalence of the disease
True or False? Validity is the ability of a measuring instrument to give a true
measure. - correct answers True
A new blood test has been developed to screen for disease Z. Researchers
establish 50 units as a cut point above which a test is considered positive and
thereby indicative of disease. The test manufacturers determine that the test's
sensitivity is unacceptably low. However, the manufacturers are not
concerned with the specificity and do not want the cost of the test to rise. How
can they improve the sensitivity of the test? - correct answers Lower the cut
point below 50 units.
True or False? Specificity refers to the ability of a screening test to identify
only nondiseased individuals who actually do not have the disease. - correct
answers True
A new screening test for Lyme disease is developed for use in the general
population. The sensitivity and specificity of the new test are 60% and 70%,
respectively. Three hundred people are screened at a clinic during the first
year the new test is implemented. Assume the true prevalence of Lyme
disease among clinic attendees is 10%.
The predictive value of a positive test is: - correct answers 18.2%
already passed 2025
Sensitivity and specificity of a screening test refer to its: - correct answers
Successful treatment programs that would shorten the duration of a disease
primarily affect: - correct answers the prevalence of the disease
True or False? Validity is the ability of a measuring instrument to give a true
measure. - correct answers True
A new blood test has been developed to screen for disease Z. Researchers
establish 50 units as a cut point above which a test is considered positive and
thereby indicative of disease. The test manufacturers determine that the test's
sensitivity is unacceptably low. However, the manufacturers are not
concerned with the specificity and do not want the cost of the test to rise. How
can they improve the sensitivity of the test? - correct answers Lower the cut
point below 50 units.
True or False? Specificity refers to the ability of a screening test to identify
only nondiseased individuals who actually do not have the disease. - correct
answers True
A new screening test for Lyme disease is developed for use in the general
population. The sensitivity and specificity of the new test are 60% and 70%,
respectively. Three hundred people are screened at a clinic during the first
year the new test is implemented. Assume the true prevalence of Lyme
disease among clinic attendees is 10%.
The predictive value of a positive test is: - correct answers 18.2%
