Simultaneous testing epidemiology

1. What is simultaneous testing?
2. Why do we do sequential and simultaneous testing?
3. What is sequential testing in epidemiology?
4. How do you calculate combined specificity and sensitivity?

What is simultaneous testing?

Simultaneous testing is a type of testing that is performed to identify the defects in a software, system and application when multiple users login to the respective application.

Why do we do sequential and simultaneous testing?

Diagnostic tests are typically used to help the physician select among available management options. When two or more tests are available, using them sequentially is potentially more efficient than simultaneously performing multiple tests, in that the former approach may allow the physician to perform fewer tests.

What is sequential testing in epidemiology?

Sequential testing is when an initial screening test is done, and those individuals that screen positive are screened. again using a second test.

How do you calculate combined specificity and sensitivity?

Sensitivity=[a/(a+c)]×100Specificity=[d/(b+d)]×100Positive predictive value(PPV)=[a/(a+b)]×100Negative predictive value(NPV)=[d/(c+d)]×100.