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Letters
January 27, 2010

Resident Fatigue, Distress, and Medical Errors—Reply

JAMA. 2010;303(4):329-330. doi:10.1001/jama.2010.16

In Reply: Drs Patterson and Yealy raise questions about the psychometric properties of the assessments used in our study. It is indeed important to have appropriately valid and reliable measures of the constructs under study for any research. The literature regarding the issues of comparative psychometric performance of single- vs multiple-item assessments indicates that there are situations for which either or both are appropriate.1,2

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