The Quality Measurement Journey - Sikker Patient
The Quality Measurement Journey - Sikker Patient
The Quality Measurement Journey - Sikker Patient
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<strong>The</strong> average of a set of numbers can be<br />
created by many different distributions<br />
Measure<br />
X<br />
(CL)<br />
Time<br />
27<br />
©Copyright 2011 IHI/R. Lloyd<br />
If you don’t understand the variation that<br />
lives in your data, you will be tempted to ...<br />
• Deny the data (It doesn’t fit my view of<br />
reality!)<br />
• See trends where there are no trends<br />
• Try to explain natural variation as special<br />
events<br />
• Blame and give credit to people for things<br />
over which they have no control<br />
• Distort the process that produced the data<br />
• Kill the messenger!<br />
28<br />
©Copyright 2011 IHI/R. Lloyd<br />
Institute for Healthcare Improvement
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