Informed by and adapted for online use by:
Hays, R. D., & Stewart, A. L. (1992). Sleep measures. In A. L. Stewart & J. E. Ware (eds.), Measuring functioning and well-being: The
Medical Outcomes Study approach (pp. 235-259), Durham, NC: Duke University Press.
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Last reviewed: By John M. Grohol, Psy.D. on 16 Jun 2014
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