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.