03:17
Intro Stats / AP Statistics
4. Given a test in which there is overlap of the test results
for diseased and non-diseased individuals (e.g., normal individuals
are found who have test results ranging in value from 8 to 15, and
diseased individuals are found who have test results ranging in
value from 12 to 25, so that in the range of values 12 to 15 there
are both normal and diseased individuals), if the current cutoff
value lies in the range of this overlap and you move the cutoff
value toward the normal population (lower numbers
in this example), the false negative numbers will
_____________________ . (3 points)
a. Increase
b. Decrease
5. Given a test in which there is overlap of the test results
for diseased and non-diseased individuals (e.g., normal individuals
are found who have test results ranging in value from 8 to 15, and
diseased individuals are found who have test results ranging in
value from 12 to 25, so that in the range of values 12 to 15 there
are both normal and diseased individuals), if the current cutoff
value lies in the range of this overlap and you move the cutoff
value toward the normal population (lower numbers
in this example), the sensitivity will
_____________________ . (3 points)
a. Increase
b. Decrease
6. Given a test in which there is overlap of the test results
for diseased and non-diseased individuals (e.g., normal individuals
are found who have test results ranging in value from 8 to 15, and
diseased individuals are found who have test results ranging in
value from 12 to 25, so that in the range of values 12 to 15 there
are both normal and diseased individuals), if the current cutoff
value lies in the range of this overlap and you move the cutoff
value toward the normal population (lower numbers
in this example), the specificity will
_____________________ . (3 points)
a. Increase
b. Decrease