<prompt> If Two screening tests are used in Series, then there will beIncreased sensitivity and decreased specificityIncreased specificity and decreased sensitivityIncreased sensitivity and increased specificityDecreased sensitivity and decreased specificity  <response>: Screening tests in series: A population is subjected to one screening test followed by a second screening test ; 2nd screening test is applied only in those in which the 1st screening test is positive. - In this, Combined values of Sensitivity decreases Specificity increases PPV increases NPV decreases 