Validation of the Epworth Sleepiness Scale for Children and Adolescents using Rasch analysis

Validation of the Epworth Sleepiness Scale for Children and Adolescents using Rasch analysis

Abstract Objective A validated measure of daytime sleepiness for adolescents is needed to better explore emerging relationships between sleepiness and the mental and physical health of adolescents. The Epworth Sleepiness Scale (ESS) is a widely used scale for daytime sleepiness in adults but contain...

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Bibliographic Details
Published in:Sleep medicine Vol. 33; pp. 30 - 35
Main Authors: Janssen, Kitty C, Phillipson, Sivanes, O’Connor, Justen, Johns, Murray W
Format: Journal Article
Language:English
Published: Netherlands Elsevier B.V 01-05-2017
Subjects:
Adolescent
Adolescent health
Australia - epidemiology
Child
Daytime sleepiness
Disorders of Excessive Somnolence - diagnosis
Disorders of Excessive Somnolence - epidemiology
Epworth Sleepiness Scale for Children and Adolescents
ESS
ESS-CHAD
Female
Humans
Male
Neurology
Psychometrics - methods
Rasch analysis
Reproducibility of Results
Sleep Medicine
Sleep Stages - physiology
Sleep Wake Disorders - diagnosis
Sleep Wake Disorders - epidemiology
Surveys and Questionnaires
Adolescent health
Rasch analysis
Epworth Sleepiness Scale for Children and Adolescents
ESS-CHAD
Daytime sleepiness
ESS
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Summary:Abstract Objective A validated measure of daytime sleepiness for adolescents is needed to better explore emerging relationships between sleepiness and the mental and physical health of adolescents. The Epworth Sleepiness Scale (ESS) is a widely used scale for daytime sleepiness in adults but contains references to alcohol and driving. The Epworth Sleepiness Scale for Children and Adolescents (ESS-CHAD) has been proposed as the official modified version of the ESS for children and adolescents. This study describes the psychometric analysis of the ESS-CHAD as a measure of daytime sleepiness for adolescents. Methods The ESS-CHAD was completed by 297 adolescents, 12−18 years old, from two independent schools in Victoria, Australia. Exploratory factor analysis and Rasch analysis was conducted to determine the validity of the scale. Results Exploratory factor analysis and Rasch analysis indicated that ESS-CHAD has internal validity and a unidimensional structure with good model fit. Rasch analysis of four subgroups based on gender and year-level were consistent with the overall results. The results were consistent with published ESS results, which strongly indicates that the changes to the scale do not affect the scale’s capacity to measure daytime sleepiness. Conclusions It is concluded that the ESS-CHAD is a reliable and internally valid measure of daytime sleepiness in adolescents 12−18 years old. Further studies are needed to establish the internal validity of the ESS-CHAD for children under 12 years, and to establish external validity and accurate cut-off points for children and adolescents.
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ISSN:1389-9457
1878-5506
DOI:10.1016/j.sleep.2017.01.014