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Comparing two versions of the Karolinska Sleepiness Scale (KSS)

The Karolinska Sleepiness Scale (KSS) is frequently used to study sleepiness in various contexts. However, it exists in two versions, one with labels on every other step (version A), and one with labels on every step (version B) on the 9-point scale. To date, there are no studies examining whether t...

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Detalles Bibliográficos
Autores principales: Miley, Anna Åkerstedt, Kecklund, Göran, Åkerstedt, Torbjörn
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Japan 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5511283/
https://www.ncbi.nlm.nih.gov/pubmed/28781579
http://dx.doi.org/10.1007/s41105-016-0048-8
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author Miley, Anna Åkerstedt
Kecklund, Göran
Åkerstedt, Torbjörn
author_facet Miley, Anna Åkerstedt
Kecklund, Göran
Åkerstedt, Torbjörn
author_sort Miley, Anna Åkerstedt
collection PubMed
description The Karolinska Sleepiness Scale (KSS) is frequently used to study sleepiness in various contexts. However, it exists in two versions, one with labels on every other step (version A), and one with labels on every step (version B) on the 9-point scale. To date, there are no studies examining whether these versions can be used interchangeably. The two versions were here compared in a 24 hr wakefulness study of 12 adults. KSS ratings were obtained every hour, alternating version A and B. Results indicated that the two versions are highly correlated, do not have different response distributions on labeled and unlabeled steps, and that the distributions across all steps have a high level of correspondence (Kappa = 0.73). It was concluded that the two versions are quite similar.
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spelling pubmed-55112832017-08-02 Comparing two versions of the Karolinska Sleepiness Scale (KSS) Miley, Anna Åkerstedt Kecklund, Göran Åkerstedt, Torbjörn Sleep Biol Rhythms Original Article The Karolinska Sleepiness Scale (KSS) is frequently used to study sleepiness in various contexts. However, it exists in two versions, one with labels on every other step (version A), and one with labels on every step (version B) on the 9-point scale. To date, there are no studies examining whether these versions can be used interchangeably. The two versions were here compared in a 24 hr wakefulness study of 12 adults. KSS ratings were obtained every hour, alternating version A and B. Results indicated that the two versions are highly correlated, do not have different response distributions on labeled and unlabeled steps, and that the distributions across all steps have a high level of correspondence (Kappa = 0.73). It was concluded that the two versions are quite similar. Springer Japan 2016-02-01 2016 /pmc/articles/PMC5511283/ /pubmed/28781579 http://dx.doi.org/10.1007/s41105-016-0048-8 Text en © Japanese Society of Sleep Research 2016
spellingShingle Original Article
Miley, Anna Åkerstedt
Kecklund, Göran
Åkerstedt, Torbjörn
Comparing two versions of the Karolinska Sleepiness Scale (KSS)
title Comparing two versions of the Karolinska Sleepiness Scale (KSS)
title_full Comparing two versions of the Karolinska Sleepiness Scale (KSS)
title_fullStr Comparing two versions of the Karolinska Sleepiness Scale (KSS)
title_full_unstemmed Comparing two versions of the Karolinska Sleepiness Scale (KSS)
title_short Comparing two versions of the Karolinska Sleepiness Scale (KSS)
title_sort comparing two versions of the karolinska sleepiness scale (kss)
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5511283/
https://www.ncbi.nlm.nih.gov/pubmed/28781579
http://dx.doi.org/10.1007/s41105-016-0048-8
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