Development and Investigation into the Psychometric Properties of the Troy Sleep Scale

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dc.contributor.authorAkinci, Erhan
dc.contributor.authorBolat, Nurullah
dc.contributor.authorKorkmaz, Sukru Alperen
dc.contributor.authorToraman, Cetin
dc.date.accessioned2026-02-03T11:59:44Z
dc.date.available2026-02-03T11:59:44Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractObjective: A unique and comprehensive self-report scale to help assess sleep in Turkish is needed. This study aimed to develop the Troy Sleep Scale (TSS) and perform validity and reliability analyses. Materials and Methods: The study was conducted with 494 medical students and residents. The psychometric properties of the devised scale were evaluated through exploratory and confirmatory factor analyses, Cronbach's alpha and McDonald's omega reliability evaluations, and item analyses based on both classical test theory and item response theory (IRT). The reliability assessment of the TSS was carried out through test-retest, and criterion-referenced validity was employed to provide additional validation. Results: The TSS consists of 11 items with a 3-factor structure with eigenvalues greater than 2. The factors provided information about (I) dysfunction due to sleep problems, (II) affective symptoms due to sleep problems, and (III) sleep quality. The reliability levels of all three sub-factors and overall scale scores were 0.82 and above. The test-retest reliability level had a correlation value of >0.80. The item analyses conducted in line with the IRT proved that the scale items provided a high level of information and functioned together with the answer set. The correlation between the TSS and the Pittsburgh Sleep Quality Index was analyzed for criterion-referenced validity, yielding a correlation of 0.73. Conclusion: The psychometric properties of the TSS indicated that it was valid and reliable, making it suitable for use as a screening test for individuals with sleep-related complaints.
dc.identifier.doi10.4274/jtsm.galenos.2024.19327
dc.identifier.endpage60
dc.identifier.issn2148-1504
dc.identifier.issn2757-850X
dc.identifier.issue1
dc.identifier.startpage52
dc.identifier.trdizinid1327394
dc.identifier.urihttps://doi.org/10.4274/jtsm.galenos.2024.19327
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1327394
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34399
dc.identifier.volume12
dc.identifier.wosWOS:001589114800006
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherGalenos Publ House
dc.relation.ispartofJournal of Turkish Sleep Medicine-Turk Uyku Tibbi Dergisi
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260130
dc.subjectSleep
dc.subjectsleep wake disorders
dc.subjectreliability
dc.subjectreproducibility of results
dc.titleDevelopment and Investigation into the Psychometric Properties of the Troy Sleep Scale
dc.typeArticle

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