The usefulness of a ‘screening test’ in a community depends on its?
Predictive value of a test signifies diagnostic power of the test.
attribute of an idea screening test is its repeatability or reliability or reproducibility.
Sensitivity has been defined as the ability of the test to identify correctly all those who have the disease, that is true positive (Hence determines the usefulness of the screening test.
Sensitivity
Specificity
Reliability
Predicitive value