Translations:Advanced Field Epi:Manual 2 - Diagnostic Tests/206/en
- The study population from which the sample is drawn should be representative of the population in which the test is to be applied;
- The sample of individuals to which the test is applied must be selected in a manner to ensure that it is representative of the study population;
- The sample should include animals in all stages of the infection/disease process;
- The sample size must be sufficient to provide adequate precision (confidence limits) about the estimate; and
- Testing should be undertaken with blinding as to the true status of the individual and to other test results.