In performing routine quality control on a particular laboratory test,a high-quality control value is obtained that changes the mean.What type of change does this represent?

Question

Quizplus · Accepted Answer

A change in the mean of a quality control value represents a shift. A trend refers to a gradual increase or decrease in the values over time. A change in the standard deviation would indicate a change in the variability of the values. Central tolerance is not a commonly used term in quality control.

In Performing Routine Quality Control on a Particular Laboratory Test,a