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The Yundt Chart compares the laboratory bias and imprecision to another Graph Against data set. (See Graph Against Options for more information.) The Yundt Chart contains a circle for each level of control running in the laboratory. Each circle provides information about the standard deviation index (SDI) and coefficient of variation (CV) of the test.
The Yundt Chart provides an immediate overview of the laboratory performance without the need to evaluate detailed data. The Yundt Chart presents a summary of data that is easily viewed for evaluating laboratory performance compared to the peer group across multiple levels. The Yundt Chart is unique in that it combines a graphical format with the SDI so that the effectiveness of the QC system can be easily viewed.
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