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Article: Adaptation and validation of the Chinese version of the Sleep Quality Questionnaire

TitleAdaptation and validation of the Chinese version of the Sleep Quality Questionnaire
Authors
KeywordsCOnsensus-based Standards for the selection of health Measurement INstruments
Instrument validation
Psychometrics
Sleep Quality Questionnaire
Issue Date20-Sep-2022
PublisherSpringer
Citation
Quality of Life Research, 2022, v. 32, p. 569-582 How to Cite?
Abstract

Study objectives

Sleep quality is essential to health. The current study aimed to adapt and validate the Sleep Quality Questionnaire (SQQ) into Chinese language.

Methods

The Chinese version of the SQQ (SQQ-C) was created following the guidelines for cross-cultural adaptation. Compliant with the COSMIN methodology, baseline data (N = 13,325) examined three validity domains and internal consistency, including content validity using the content validity index (CVI) and the cognitive debriefing and focus group (relevance, comprehensiveness and comprehensibility), construct validity using structural validity and cross‑sectional measurement invariance, and criterion validity using concurrent/convergent validity. Follow-up data (N = 3410) gathered within a mean of 168 (167–207) h interval were used to additionally assess longitudinal measurement invariance and test–retest reliability using intraclass correlation coefficient (ICC).

Results

Scale-level CVI/Average was equal to 0.922; Item-level CVIs ranged from 0.889 to 1.000 (excellent), except for item 2 (0.556-fair). A panel of local experts and local participants during cognitive debriefing and focus group stated that it had sufficient relevance and comprehensibility but a slight deficiency in comprehensiveness. Confirmatory factor analysis indicated a stable two-factor structure encompassing Daytime Sleepiness Subscale and Sleep Difficulty Subscale from baseline to follow-up data. The SQQ-C-9 (without item 2) outperformed the SQQ-C-10 (full form). The SQQ-C-9 provided evidence of measurement invariance (strict) across subgroups (cohorts, gender, and age) and across time. The SQQ-C was negatively correlated with the Chinese Nonrestorative Sleep Scale and the Chinese Sleep Condition Indicator. Cronbach's alpha (α), McDonald's Omega (ω), and ICC, respectively, ranged from 0.712 to 0.838, 0.723 to 0.840, and 0.738 to 0.764 for total scale and each subscale.

Conclusion

The SQQ-C exhibits adequate psychometric properties and a stable two-factor structure, and should enable valuable assessments of sleep quality in clinical and research settings.


Persistent Identifierhttp://hdl.handle.net/10722/331517
ISSN
2023 Impact Factor: 3.3
2023 SCImago Journal Rankings: 1.299
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMeng, RT-
dc.contributor.authorKato, T-
dc.contributor.authorMastrotheodoros, S-
dc.contributor.authorDong, L-
dc.contributor.authorFong, DYT-
dc.contributor.authorWang, F-
dc.contributor.authorCao, ML-
dc.contributor.authorLiu, XL-
dc.contributor.authorYao, CM-
dc.contributor.authorCao, JH-
dc.contributor.authorYu, Y-
dc.contributor.authorLuo, Y-
dc.contributor.authorYu, CAH-
dc.contributor.authorGozal, D-
dc.date.accessioned2023-09-21T06:56:33Z-
dc.date.available2023-09-21T06:56:33Z-
dc.date.issued2022-09-20-
dc.identifier.citationQuality of Life Research, 2022, v. 32, p. 569-582-
dc.identifier.issn0962-9343-
dc.identifier.urihttp://hdl.handle.net/10722/331517-
dc.description.abstract<h3>Study objectives</h3><p>Sleep quality is essential to health. The current study aimed to adapt and validate the Sleep Quality Questionnaire (SQQ) into Chinese language.</p><h3>Methods</h3><p>The Chinese version of the SQQ (SQQ-C) was created following the guidelines for cross-cultural adaptation. Compliant with the COSMIN methodology, baseline data (<em>N</em> = 13,325) examined three validity domains and internal consistency, including content validity using the content validity index (CVI) and the cognitive debriefing and focus group (relevance, comprehensiveness and comprehensibility), construct validity using structural validity and cross‑sectional measurement invariance, and criterion validity using concurrent/convergent validity. Follow-up data (<em>N</em> = 3410) gathered within a mean of 168 (167–207) h interval were used to additionally assess longitudinal measurement invariance and test–retest reliability using intraclass correlation coefficient (ICC).</p><h3>Results</h3><p>Scale-level CVI/Average was equal to 0.922; Item-level CVIs ranged from 0.889 to 1.000 (excellent), except for item 2 (0.556-fair). A panel of local experts and local participants during cognitive debriefing and focus group stated that it had sufficient relevance and comprehensibility but a slight deficiency in comprehensiveness. Confirmatory factor analysis indicated a stable two-factor structure encompassing Daytime Sleepiness Subscale and Sleep Difficulty Subscale from baseline to follow-up data. The SQQ-C-9 (without item 2) outperformed the SQQ-C-10 (full form). The SQQ-C-9 provided evidence of measurement invariance (strict) across subgroups (cohorts, gender, and age) and across time. The SQQ-C was negatively correlated with the Chinese Nonrestorative Sleep Scale and the Chinese Sleep Condition Indicator. Cronbach's alpha (α), McDonald's Omega (ω), and ICC, respectively, ranged from 0.712 to 0.838, 0.723 to 0.840, and 0.738 to 0.764 for total scale and each subscale.</p><h3>Conclusion</h3><p>The SQQ-C exhibits adequate psychometric properties and a stable two-factor structure, and should enable valuable assessments of sleep quality in clinical and research settings.</p>-
dc.languageeng-
dc.publisherSpringer-
dc.relation.ispartofQuality of Life Research-
dc.subjectCOnsensus-based Standards for the selection of health Measurement INstruments-
dc.subjectInstrument validation-
dc.subjectPsychometrics-
dc.subjectSleep Quality Questionnaire-
dc.titleAdaptation and validation of the Chinese version of the Sleep Quality Questionnaire-
dc.typeArticle-
dc.identifier.doi10.1007/s11136-022-03241-9-
dc.identifier.scopuseid_2-s2.0-85138426475-
dc.identifier.volume32-
dc.identifier.spage569-
dc.identifier.epage582-
dc.identifier.eissn1573-2649-
dc.identifier.isiWOS:000855594200001-
dc.identifier.issnl0962-9343-

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