Assessing agreement between two methods using Bland-Altman
Video tutorial, with step-by-step instructions and example files.
Text version and example files
Watch on YouTube
Learn how to assess agreement between two methods of measurement using Analyse-it for Microsoft Excel.
The tutorial covers plotting the relationship between methods, estimating the average bias and the limits of agreement, understanding the importance of repeatability, using replicate measurements, dealing with a relationship between difference and magnitude, transforming the measurements to remove a relationship, estimating regression based limits of agreement, and estimating non-parametric limits of agreement.
This video applies to Analyse-it version 3.76 and later.