ELISA is performed on a population with low prevalence, What would be the result of performing double screening ELISA tests-
Ref: Parks 23rd edition pg 139 Double ELISA meaning screening test is done in series. Series screening test : Sensitivity decreases Specificity increases PPV increases NPV decreases
Increased sensitivity and positive predictive value
Increased sensitivity and negative predictive value
Increased specificity and positive predictive value
Increased specificity and negative predictive value
Screening