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Evaluating agreement between two methods for measuring the same quantity: A response

✍ Scribed by James Lee

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
300 KB
Volume
22
Category
Article
ISSN
0010-4825

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✦ Synopsis

A method comparison study is typically concerned with evaluating the agreement between a "new" method against an "established" method for measuring the same quantity. Various statistical indices have been advocated for measuring the extent to which two methods give identical readings, that is, absolute method agreement. This article scrutinizes two contending statistical indices, the intraclass correlation and the "limits of agreement", for measuring absolute method agreement, and found neither index to be without deficiency. Notwithstanding, each index can serve a useful role in quantitating method agreement in carefully considered situations.

Method agreement agreement

Method comparison

Intraclass correlation Limits of

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