How many materials need to be analyzed in a replication experiment?
Good planning would be to analyze the number of materials that will be used in routine quality control for that test. In US laboratories, CLIA places certain requirements on the number of materials to be used for different tests – e.g., a minimum of 2 levels or materials. Laboratory practices commonly include 3 materials for certain tests, such as blood gases and hematology. When possible, select control materials that can be continued for QC once the test is implemented in your laboratory.
