Bland-Altman is a method for comparing two measurements of the same variable. This is especially important if you are trying to introduce a new measurement capability that has some advantages (e.g. it is less expensive or safer to use) over an existing measurement technique.
Topics
References
Giavarina, D. (2015) Understanding Bland-Altman. Biochemia Medica
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4470095/
Bland, J. M. and Altman, D. G. (1986) Statistical methods for assessing agreement between two methods of clinical measurement. Lancet, 1986 pp 307-310
https://pubmed.ncbi.nlm.nih.gov/2868172/
for analysis of medical data.
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