Validating the cross-cultural factor structure and invariance property of the Insomnia Severity Index: evidence based on ordinal EFA and CFA

Highlights • The factorial validity and invariance of the Insomnia Severity Index (ISI) were examined. • The validity of the three-factor model of ISI is supported. • The strong invariance of ISI between cross-cultural data sets is also supported.

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Bibliographic Details
Published in:Sleep medicine 2015-05, Vol.16 (5), p.598-603
Main Authors: Chen, Po-Yi, Yang, Chien-Ming, Morin, Charles M
Format: Article
Language:English
Subjects:
Canada - epidemiology
Cross-Cultural Comparison
Factor Analysis, Statistical
Factorial structure
Hong Kong - epidemiology
Humans
Insomnia Severity Index
Measurement invariance
Multigroup structural equation model
Neurology
Ordinal exploratory factor analysis
Psychometrics
Reproducibility of Results
Severity of Illness Index
Sleep Initiation and Maintenance Disorders - diagnosis
Sleep Initiation and Maintenance Disorders - epidemiology
Sleep Initiation and Maintenance Disorders - ethnology
Sleep Medicine
Surveys and Questionnaires
Taiwan - epidemiology
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Description
Summary:Highlights • The factorial validity and invariance of the Insomnia Severity Index (ISI) were examined. • The validity of the three-factor model of ISI is supported. • The strong invariance of ISI between cross-cultural data sets is also supported.
ISSN:1389-9457
1878-5506
DOI:10.1016/j.sleep.2014.11.016