Translations:Advanced Field Epi:Manual 2 - Diagnostic Tests/12/en

Tests performed on identical material under apparently similar conditions do not, in general, yield identical results. This variation is attributed to random error inherent in every test procedure because factors that may influence the result of a test cannot all be completely controlled. When interpreting test results, this variability must be taken into account. There are many different factors which contribute to the variability of a test procedure, including: