More false positive cases in a screening test is due to -
Ans. is 'a' i.e., Low prevalenceo If a population has more false positive cases : -i) Screening test is more sensitiveii) Positive predictive value of the test is low.iii) Prevalence of disease is low.o If a population has more false negative casesi) Screening test is more specificii) Negative predictive value of the test is low
Screening for Disease
Low prevalence
High specificity
High PPV
Low sensitivity
Low prevalence