Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [bland-altman-plot]

The Bland-Altman plot is used to analyze the agreement of different assays or methods of analysis. Outside of medicine, analytical chemistry and biostatistics, this plot is usually known as a Tukey mean difference plot.

The Bland-Altman plot consists in plotting the difference between the two assays against the mean of the two assays on each sample. This thread and this thread discuss its interpretation.

For the Tukey mean difference plot, it need not be "assays" but can be any variables.

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Bland-Altman plot correction for proportional bias

I am comparing 2 measurement methods with the Bland-Altman plot methodology. I found a proportional bias between the 2 measurement systems, by the regression model: difference = intercept + b1*average The parameters of the regression are: intercept…
user3315563
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Bland Altman plot interpretation

Dear all and good day, Could please someone help me clarify what does it mean for the lower limit of the BA plot to be positive. In most of the BA plots I saw, the limit ranges from -ve to -ve number but mine both upper and lower limits are +ve (1.2…
Auwal Abubakar
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