ArticlePsychiatry investigation2024
Psychometric Properties of the Insomnia Severity Index and Its Comparison With the Shortened Versions Among the General Population.
Article in Psychiatry investigation, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed.
- Pain-Related Dysfunctional Beliefs About Sleep and Depression Mediate the Influence of Pain Severity on Fear of Progression Among Individuals With Cancer.Psychiatry investigation · 2026Article
- Validation of the Korean Version of the Meta-Worry Questionnaire Among the General Population.Psychiatry investigation · 2026Article
- Development of Sleep medications MYTH-understanding (SMYTH) and Sleep Medications Overexpectation of REsponses (SMORE) among the general population.Sleep & breathing = Schlaf & Atmung · 2026Article
- Insomnia, Pain, and Pain-Related Dysfunctional Beliefs about Sleep among Patients with Cancer.Cancer research and treatment · 2026Article
- Psychometric Properties of the Korean Version of the Glasgow Sleep Effort Scale in the General Population and Among Individuals Reporting Insomnia.Psychiatry investigation · 2026Article
- The Dysfunctional Self-Focus Attributes Scale-7 (DSAS-7): A Machine Learning-based Development of a Shortened Version of the DSAS.Journal of medical systems · 2026Article
- Effect of Psychological Inflexibility and Cancer-Related Dysfunctional Beliefs About Sleep on the Relationship Between Depression and Fear of Progression in Patients with Cancer.The Psychiatric quarterly · 2026Article
- Exploring the Characteristics of Individuals Grouped Based on the Multimodal Optimized Treatment for Insomnia Framework Among Individuals Complaining of Insomnia.Psychiatry investigation · 2026Article
- Community-built environment and self-rated health in Western China: a latent serial mediation within SEM of sleep quality and family functioning.Frontiers in public health · 2026Article
- Mediating effect of suicidality on influence of insomnia on favorable attitude to taking hypnotics among people in the general population complaining of insomnia.BMC psychology · 2025Article
- Psychometric Evaluation of the Insomnia Severity Index in Chronic Disease Patients Using Three Complementary Approaches.Brain and behavior · 2025Article
- Cancer-related Dysfunctional Beliefs and Attitude about Sleep-6 (C-DBAS-6): a practical and accurate shortened version using XGBoost and SymScore.Sleep and biological rhythms · 2025Article
- Validation of a Korean version of the Insomnia Catastrophizing Scale and examination of the relation between catastrophizing and sleep-related cognition.Sleep and biological rhythms · 2025Article
- Validation of the Korean Version of the Anxiety and Preoccupation About Sleep Questionnaire and Comparisons With Other Sleep-Related Cognition Scales Among the General Population.Psychiatry investigation · 2025Article
- Mediating Effect of Psychological Inflexibility, Insomnia, and Resilience on the Association Between Pain and Depression Among Patients With Chronic Pain.Psychiatry investigation · 2025Article
- Post-Infection Insomnia, Dysfunctional Beliefs About Sleep, and Depression in the COVID-19-Infected General Population.Psychiatry investigation · 2025Article
- Development of the Sleeping Pills Receptivity and Involuntariness Scale-6 (SPRIS-6) to Assess Acceptance of Hypnotics Use.Nature and science of sleep · 2025Article
- Is the Current Lights-Off Time in General Hospitals Too Early, Given People's Usual Bedtimes?Psychiatry investigation · 2024Article
- Mediating Effect of Firefighters' Resilience and Public Service Motivation Regarding the Influence of Depression on Their Work Engagement During COVID-19.The Psychiatric quarterly · 2024Article
- Interpersonal Factors and Resilience Mediate the Association Between Work-Related Stress in Response to a Viral Epidemic and Depression Among Healthcare Workers in the COVID-19 Pandemic.Psychiatry investigation · 2024Article
Corrections and comments
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Authors and funding
10 authors.
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No grant is acknowledged in the PubMed record.
Abstract
objectiveThe aim of this study was to explore the psychometric properties of the Insomnia Severity Index (ISI) based on modern test theory, such as item response theory (IRT) and Rasch analysis, with shortened versions of the ISI among the general population.
methodsWe conducted two studies to evaluate the reliability and validity of the shortened versions of the ISI in a Korean population. In Study I, conducted via online survey, we performed an exploratory factor analysis (n=400). In Study II, confirmatory factor analysis (CFA) was conducted (n=400). IRT and Rasch analysis were performed on all samples. Participants symptoms were rated using the ISI, Dysfunctional Beliefs and Attitudes about Sleep-16 items, Dysfunctional Beliefs about Sleep-2 items, Patient Health Questionnaire-9 items, and discrepancy between desired time in bed and desired total sleep time.
resultsCFA showed a good fit for the 2-factor model of the ISI (comparative fit index=0.994, Tucker-Lewis index=0.990, root-meansquare-error of approximation=0.039, and standardized root-mean-square residual=0.046). The 3-item versions also showed a good fit for the model. All scales showed good internal consistency reliability. The scale information curve of the 2-item scale was similar to that of the full-scale ISI. The Rasch analysis outputs suggested a good model fit.
conclusionThe shortened 2-factor ISI is a reliable and valid model for assessing the severity of insomnia in the Korean population. The results are needed to be explored further among the clinical sample of insomnia.
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