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
Many different factors may contribute to the variability between replicate measurements, including the operator; the equipment used; the calibration of the equipment; the environment; the time elapsed between measurements.
Two conditions of precision, termed repeatability and reproducibility conditions are useful for describing the variability of a measurement procedure. Other intermediate conditions between these two extreme conditions of precision are also conceivable and useful, such as conditions within a single laboratory.