Validity and reliability of the Turkish version of the Ottawa sitting scale in patients with multiple Sclerosis
      
Yazarlar (6)
Nazım Tolgahan Yıldız
Karamanoğlu Mehmetbey Üniversitesi, Türkiye
Dr. Öğr. Üyesi Mehmet CANLI Kırşehir Ahi Evran Üniversitesi, Türkiye
Hikmet Kocaman
Karamanoğlu Mehmetbey Üniversitesi, Türkiye
Dr. Öğr. Üyesi Aysu YETİŞ Kırşehir Ahi Evran Üniversitesi, Türkiye
Hasan Yıldırım
Karamanoğlu Mehmetbey Üniversitesi, Türkiye
Arş. Gör. İrem CANLI Kırşehir Ahi Evran Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Acta Neurologica Belgica (Q3)
Dergi ISSN 0300-9009 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 04-2025
Cilt / Sayı / Sayfa 125 / 2 / 501–508 DOI 10.1007/s13760-025-02736-9
Makale Linki https://doi.org/10.1007/s13760-025-02736-9
Özet
Purpose: This study aimed to examine the validity and reliability of the Turkish version of the Ottawa Sitting Scale (OSS-TR) in patients with multiple sclerosis (MS). Methods: The study included 52 patients aged 29–45 who were diagnosed with MS based on McDonald criteria. To establish construct validity, structural (with confirmatory factor analysis, CFA) and convergent validity were examined. For convergent validity, the associations between the OSS-TR score with the Trunk Impairment Scale (TIS) and Berg Balance Scale (BBS) scores were analyzed. The average variance extracted (AVE) and construct reliability (CR) were calculated to enhance the assessment of convergent validity. To assess the reliability of the OSS-TR, the scale was re-administered to all participants seven days later by the same rater, and the intraclass correlation coefficient (ICC) was computed to determine the test–retest reliability. Results: According to the factor analysis results, the scale was found to have a single factor. CFA indicated that the model fit indices for the OSS-TR were acceptable, verifying its construct validity. Strong correlations between the OSS-TR score and BBS (r = 0.843) and TIS (r = 0.867) scores confirmed the convergent validity of the OSS-TR (p < 0.05). Furthermore, the fact that the AVE score (0.578) was greater than 0.50 and the CR score (0.905) was greater than 0.70 supported convergent validity. The OSS-TR had high test–retest reliability (ICC = 0.953) and internal consistency (Cronbach's alpha = 0.934). Conclusion: According to the results of the study, the OSS-TR is a reliable and valid tool for assessing sitting balance in Turkish-speaking MS patients.
Anahtar Kelimeler
Multiple sclerosis | Ottowa sitting scale | Reliability | Sitting balance | Validity