Basic Method Validation
Yes, you can validate the performance of a qualitative method. No, you won't run the same statistical studies you would with a quantitative method. The positive: you run fewer studies for qualitative tests. The negative: they are a bit harder to set up and interpret.
Ampliando la lección anterior sobre el estudio de acuerdo clínico, el Dr. Westgard analiza el valor predictivo de una prueba de laboratorio.
CDC is strongly recommending that laboratories check their positive results with confirmatory testing. Here's Why and Here's How.