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Quality Measure Reliability: Continuous and Binary Measures

Posted Sep 25 2012 12:00am

How do you measure whether a quality measure is reliable?  What does the term “reliable” even mean?

In the world of quality measurement, reliability is the ability to confidently tell the difference between a high-performing individual (or physician or hospital) and a low-performing individual.  One can think of reliability as a signal-to-noise measure; if the signal is stronger, it is easier to identify high-quality providers, but if the measure has a lot of noise, it will be difficult to distinguish a high quality provider from a low-quality provider.

Today I review how to measure reliability for both continuous and binary quality measures.

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