Repeated Measures Bland-Altman

Question

Jake 2023-9-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2026307-repeated-measures-bland-altman

回答： Rik 2023-9-28

I am assessing the agreement between 2 assessment tools for the same individuals over numerous days.

I am not sure if https://uk.mathworks.com/matlabcentral/fileexchange/45049-bland-altman-and-correlation-plot?s_tid=srchtitle_support_results_2_bland%20altman is the correct approach as this treats each measure of the 2 assessments as an individual case. Is some able to explain if this is OK?

Thanks in advance

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Answer 1

Rik 2023-9-28

1
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https://ww2.mathworks.cn/matlabcentral/answers/2026307-repeated-measures-bland-altman#answer_1320784

Your questions is a statistics question, not a Matlab question.

But no, this is not appropriate, since the presumtion underlying a Bland-Altman analysis is that all measurement pairs are independent. If the same indivual is measured, you need to explain why you think your situation still satisfies the requirement.