Adaptation of Oxford Cognitive Screen into Turkish (OCS-TR): Validity and reliability study in stroke survivors

Basit Öğe Kaydı
dc.authoridOGUZ, OZLEM/0000-0001-7590-0028
dc.authoridDemeyere, Nele/0000-0003-0416-5147
dc.contributor.authorOguz, Ozlem
dc.contributor.authorTogram, Bulent
dc.contributor.authorDemeyere, Nele
dc.date.accessioned2025-03-20T09:50:44Z
dc.date.available2025-03-20T09:50:44Z
dc.date.issued2025
dc.departmentİzmir Bakırçay Üniversitesi
dc.description.abstractBackgroundThe existing cognitive screening tests used to assess cognitive disorders after stroke in T & uuml;rkiye face limitations in scope and user applicability. Therefore, this study aimed to address these limitations by adapting the stroke-specific cognitive screening test, the Oxford Cognitive Screen (OCS), into Turkish. Additionally, validity and reliability studies were conducted.MethodsA total of 114 stroke survivors and 92 healthy individuals participated in the study. Data were collected using the Participant Information Form, Oxford Cognitive Screen Turkish Version (OCS-TR), Aphasia Language Assessment Test (ADD), Montreal Cognitive Assessment Test- Turkish (MOCA-TR), Barthel Activities of Daily Living Index (BGYAI) and Beck Depression Scale. The team followed an established and detailed step by step process guided by the OCS Concept Elaboration document. Statistical analyses were conducted with IBM SPSS Statistics. Validity and reliability studies, including content validity, known-groups validity, convergent and divergent validity, concurrent validity, internal consistency reliability, test-retest reliability, inter-rater reliability, intra-rater reliability, and parallel forms reliability were conducted to assess the robustness of the measurement instruments.ResultsThe language and cultural adaptation process underwent content analysis, adhering to ISPOR and ISOQOL guidelines, resulting in minimal content changes post-pilot study. Notable differences in subtest scores between healthy and stroke participants in both A and B forms of OCS-TR demonstrate known-groups validity, emphasizing superior performance in healthy participants. Strong convergent validity was evidenced by significant correlations with MOCA-TR (rs=0.18 to 0.81) and BGYAI (rs=0.19 to 0.51), while divergent validity was supported by weak correlations with overall BGYAI scores. Noteworthy correlations between specific subtests of OCS-TR and ADD underscore concurrent validity, with high inter- and intra-rater reliability, internal consistency (alpha = 0.90 for stroke, alpha = 0.65 for healthy) and test-retest reliability (rs=0.89 to 0.99). Parallel forms reliability was high in both healthy and stroke participants, though significant differences were observed on specific subtests.ConclusionThe results confirm that the OCS-TR scale can be considered a valid and reliable instrument for assessing cognitive functions in stroke survivors. This stroke-specific tool offers clinicians a comprehensive and inclusive brief cognitive screening tool tailored to the needs of stroke patients.
dc.identifier.doi10.1186/s40359-025-02351-6
dc.identifier.issn2050-7283
dc.identifier.issue1
dc.identifier.pmid39994757
dc.identifier.scopus2-s2.0-85218711070
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1186/s40359-025-02351-6
dc.identifier.urihttps://hdl.handle.net/20.500.14034/2281
dc.identifier.volume13
dc.identifier.wosWOS:001429462300003
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherSpringernature
dc.relation.ispartofBmc Psychology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250319
dc.subjectStroke
dc.subjectCognition
dc.subjectCognitive impairment
dc.subjectScreening
dc.titleAdaptation of Oxford Cognitive Screen into Turkish (OCS-TR): Validity and reliability study in stroke survivors
dc.typeArticle

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Küçük Resim
İsim:
Tam Metin / Full Text
Boyut:
1.95 MB
Biçim:
Adobe Portable Document Format
İndir

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
PubMed İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu