Most number of false positives by a screening test is because of?a)  High specificityb)  High sensitivityc)  High prevalenced)  Low prevalence
If a population has more false positive cases : -


Screening test is more sensitive
Positive predictive value of the test is low.
Prevalence of disease is low.



If a population has more false negative cases

i)   Screening test is more specific
ii)  Negative predictive value of the test is low
c
d
ab
bd