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A note on the use of the intraclass correlation coefficient in the evaluation of agreement between two methods of measurement

✍ Scribed by J.M. Bland; D.G. Altman

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
376 KB
Volume
20
Category
Article
ISSN
0010-4825

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✦ Synopsis

The intraclass correlation coefficient (r,) has been advocated as a statistic for assessing agreement or consistency between two methods of measurement, in conjunction with a significance test of the difference between means obtained by the two methods. We show that neither technique is appropriate for assessing the interchangeability of measurement methods. We describe an alternative approach based on estimation of the mean and standard deviation of differences between measurements by the two methods.

Method agreement

Method comparison Intraclass correlation

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