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김인자 ( Kim In-Ja ) - Daejeon University Department of Nursing
최희정 ( Choi Hee-Jung ) - Konkuk University Department of Nursing
김범종 ( Kim Beom-Jong ) - Seowon University Department of Business Adminstration
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Abstract
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Purpose: The Leeds Sleep Evaluation Questionnaire (LSEQ) translated into Korean was modified to easily apply and reduce respondents" confusion and was evaluated for psychometric properties and discriminant ability.
Methods: A total of 960 Korean adults aged 45 years and older participated in this cross-sectional survey. To test reliability, validity and discriminant ability, Cronbach"s alpha, correlation analysis, confirmatory factor analysis, simple regression analysis and receiver operating characteristics (ROC) curve analysis were used.
Results: Item-total correlations ranged between .62~.85 and Cronbach"s alpha was .95. Area under ROC was .86 (95% CI: .83~.90) and the optimal cutoff score was identified as ≤ 66 (sensitivity, .77; specificity, .84; positive/negative predictive values, .49/.95). Using this cutoff score, the prevalence of insomnia in the study sample was 25.8% and tended to be more common in female and older groups.
Conclusion: The data supported the psychometric properties of Korean Modified Leeds Sleep Evaluation Questionnaire (KMLSEQ) as an acceptable sleep measurement. In addition, KMLSEQ is likely to be a useful screening tool for insomnia.
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KeyWords
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Sleep, Self-report, Questionnaire, Psychometrics
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원문 및 링크아웃 정보
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등재저널 정보
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