%0 Journal Article %1 Blan_1995_1085 %A Bland, J. M. %A Altman, D. G. %D 1995 %J Lancet %K (Epidemiology), 7564793 Bias Humans, Measures, Reference Standards, Statistics, Values, Weights and %N 8982 %P 1085--1087 %T Comparing methods of measurement: why plotting difference against standard method is misleading. %V 346 %X When comparing a new method of measurement with a standard method, one of the things we want to know is whether the difference between the measurements by the two methods is related to the magnitude of the measurement. A plot of the difference against the standard measurement is sometimes suggested, but this will always appear to show a relation between difference and magnitude when there is none. A plot of the difference against the average of the standard and new measurements is unlikely to mislead in this way. We show this theoretically and by a practical example.

@article{Blan_1995_1085, abstract = {When comparing a new method of measurement with a standard method, one of the things we want to know is whether the difference between the measurements by the two methods is related to the magnitude of the measurement. A plot of the difference against the standard measurement is sometimes suggested, but this will always appear to show a relation between difference and magnitude when there is none. A plot of the difference against the average of the standard and new measurements is unlikely to mislead in this way. We show this theoretically and by a practical example.}, added-at = {2009-06-03T11:20:58.000+0200}, author = {Bland, J. M. and Altman, D. G.}, biburl = {https://www.bibsonomy.org/bibtex/214da06bbddbc4b9cbe3192a35932c25e/hake}, description = {The whole bibliography file I use.}, interhash = {2b1e0c7f51d0b1c76eacb7c0854f00d9}, intrahash = {14da06bbddbc4b9cbe3192a35932c25e}, journal = {Lancet}, keywords = {(Epidemiology), 7564793 Bias Humans, Measures, Reference Standards, Statistics, Values, Weights and}, month = Oct, number = 8982, pages = {1085--1087}, pmid = {7564793}, timestamp = {2009-06-03T11:21:04.000+0200}, title = {Comparing methods of measurement: why plotting difference against standard method is misleading.}, volume = 346, year = 1995 }