A classical test theory evaluation of the Sleep Condition Indicator accounting for the ordinal nature of item response data.

<h4>Background</h4>Insomnia symptoms are common among young adults and affect about 5% to 26% of 19 to 34-year-olds. In addition, insomnia is associated with poor mental health and may affect daily performance. In research, as well as in clinical practice, sleep questionnaires are used t...

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Bibliographic Details
Main Authors: Amanda Hellström, Peter Hagell, Anders Broström, Martin Ulander, Annemarie I Luik, Colin A Espie, Kristofer Årestedt
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0213533