We are receiving a lot of questions about relevant analyses in the Analyse-it Method Validation edition to help in evaluating new diagnostic tests in the fight against COVID-19. Below are some quick links that will help, but contact us if you have questions - we are working as normal.
Also see our latest blog post: Sensitivity/Specificity and The Importance of Predictive Values for a COVID-19 test
When data are collected under a variety of different conditions the meaning of the
data can be hard to see. Stratification within a process can lead to hidden underlying
Control chart points are plotted using a symbol and color depending on the
operator. It is easy to see that the operator SNH was responsible when the
out-of-control signals occurred.
After investigating the causes of the out-of-control condition we document
them in the worksheet alongside the data.