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Figure 4 | Health and Quality of Life Outcomes

Figure 4

From: Understanding Ferguson's δ: time to say good-bye?

Figure 4

The impact of measurement error on discrimination and ordering. Scatterplot comparing the total scores (true score plus measurement error) of the 30 subjects of Figure 3, with their true scores. Three pairs of subjects have been highlighted to illustrate changes in discrimination and ordering due to measurement error.

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