How does one interpret a Bland-Altman plot? - Cross Validated
2016年7月13日 · A Bland–Altman plot (difference plot) in analytical chemistry or biomedicine is a method of data plotting used in analyzing the agreement between two different assays. It is identical to a Tukey mean-difference plot 1 , the name by which it is known in other fields, but was popularised in medical statistics by J. Martin Bland and Douglas G ...
Bland-Altman (Tukey Mean-Difference) plot for differing scales
My question: Is there a method similar to a Bland-Altman plot (also known as a Tukey Mean-Difference plot) that can handle different scales? My only thought was to use a Spearman correlation to compare the relative ordering of samples, but correlations are fraught with peril. Many thanks for any responses.
Proper name for "modified Bland–Altman plot" - Cross Validated
2017年5月22日 · My lab uses what our PI calls "modified Bland–Altman plots" to analyze regression quality. I'd like to know what the generally used name is for these plots. A Bland–Altman plot compares the difference between two measures to their average. The "modification" is that the x-axis is, instead of the average, the ground truth value.
lognormal distribution - Bland-Altman with non-normally …
2021年10月9日 · The variable is represented by the weekly intake of a contaminant through diet. One method is a Food Frequency Questionnaire (FFQ), while the other is the measurement of a biomarker of exposition in the same individuals that answered the questionnaire. I want to evaluate the agreement between the two methods via Bland Altman analysis.
Newest 'bland-altman-plot' Questions - Cross Validated
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.
QQ Plot interpretation - Cross Validated
2022年7月8日 · $\begingroup$ As far as I can see, Bland & Altman simply take a Tukey mean-difference plot and stick mean $\pm$ 2 sd lines on it. There doesn't seem to be a strong need to assume normality to make the plot; the only thing that might be at all in question is the suitability of the additional lines, but even that's not necessarily a huge issue (e ...
Highest scored 'bland-altman-plot' questions - Cross Validated
2015年8月14日 · 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.
r - Can I use ICC and bland altman plot to study agreement of …
2016年7月22日 · Certainly you can. Of course, with your small sample size, you will be able to detect only very large deviations from agreement, e.g., in the bland-altman-plot, your horizontal confidence band around zero will be very wide.
data visualization - Creating and interpreting Bland-Altman plot ...
$\begingroup$ A not for later readers -- statisticians might be more familiar with this kind of plot being called a Tukey mean-difference plot (equivalently, a Tukey-sum-difference plot -- the plots are identical, aside from the scale on one axis), since this was well known in statistics long before Bland and Altman popularized it in the ...
Bland-Altman plot correction for proportional bias
2022年3月17日 · 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 = 18.44. b1 = -0.27. both are significant.