Level of Personality Functioning in Turkish Clinical and Community Samples: Validation of the LPFS-SR-TR and Its Associations With Axis I Disorders

dc.contributor.authorOzcan, Begum Yaman
dc.contributor.authorCangur, Sengul
dc.contributor.authorKara, Neslihan
dc.contributor.authorKonuk, Numan
dc.date.accessioned2026-07-01T11:40:15Z
dc.date.available2026-07-01T11:40:15Z
dc.date.issued2026
dc.departmentDüzce Üniversitesi
dc.description.abstractThis study examines the validity and reliability of the Turkish version of the Level of Personality Functioning Scale-Self-Report (LPFS-SR-TR) and its associations with personality disorder (PD) categories and Axis I comorbidities. The cross-sectional study included 720 participants aged 18-65. From a consecutive sample of 732 patients who presented to the outpatient psychiatry clinic, experienced psychiatrists suspected 207 of having PD. They were further diagnosed using the structured clinical interview for DSM-III-R personality disorders (SCID-II). Patients were also investigated for Axis I disorders using the SCID-5 clinical version. A community-based control group of 513 participants recruited through convenience sampling received self-assessment-based SCID-II without a clinical interview. Both groups underwent the Big Five Inventory (BFI) and LPFS-SR-TR. The six-factor model provided the best statistical fit. Significant correlations between the LPFS-SR-TR and BFI indicate concurrent validity. Patients scored higher on the LPFS-SR-TR. Using a total score threshold of greater than 277.5 resulted in 93.2% sensitivity and 83.0% specificity (AUC = 0.94) for identifying PDs, indicating discriminant validity. Serial logistic models suggested incremental validity. The scale demonstrated strong internal consistency (Cronbach's alpha = 0.96) and test-retest reliability (ICC = 0.86). The LPFS-SR-TR is valid and reliable for assessing the presence and severity of PDs. The hypothesized one-dimensional factor structure may be supported given its ability to distinguish PDs from a community sample. Axis I comorbidities are common and diverse without any discernible pattern.
dc.identifier.doi10.1002/pmh.70076
dc.identifier.issn1932-8621
dc.identifier.issn1932-863X
dc.identifier.issue2
dc.identifier.orcid0000-0002-5165-3090
dc.identifier.pmid41974613
dc.identifier.scopus2-s2.0-105035604390
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/pmh.70076
dc.identifier.urihttps://hdl.handle.net/20.500.12684/23723
dc.identifier.volume20
dc.identifier.wosWOS:001772925900001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofPersonality and Mental Health
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260623
dc.subject[Keyword Not Available]
dc.titleLevel of Personality Functioning in Turkish Clinical and Community Samples: Validation of the LPFS-SR-TR and Its Associations With Axis I Disorders
dc.typeArticle

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