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Turkish validity and reliability study of Self-Blame Attributions for Cancer Scale: A methodological study
Gülcan Bahçecioğlu Turan1, Nejla Demir2, Zülfünaz Özer3
1Department of Nursing, Faculty of Health Sciences, Firat University, Elazığ, Türkiye.
Purpose:
This study aimed to culturally adapt the Self-Blame Attributions for Cancer Scale (SBAC) into Turkish and evaluate its psychometric properties, including validity and reliability.
Method:
This methodological study enrolled 161 patients from both inpatient and outpatient oncology departments of a university hospital during a 1-year observation period (March 2024-March 2025). Participant data were obtained by using 2 instruments: a demographic questionnaire and the adapted Turkish version of "the SBAC."
Results:
Confirmatory factor analysis revealed strong factor loadings ranging from 0.670 to 0.850, indicating good item reliability. Model fit statistics demonstrated excellent psychometric properties (χ2/df = 2.00; root mean square error of approximation = 0.079; Comparative Fit Index = 0.99; standardized root mean square residual = 0.042; Tucker-Lewis Index = 0.98; root mean square residual = 0.042). The scale showed high internal consistency, with a total Cronbach's α of 0.93 and subscale α coefficients ranging from 0.85 to 0.90. The original 2-factor structure of the SBAC was supported.
Conclusion:
The study confirmed the bidimensional structure (11 items) of SBAC's Turkish version with excellent validity and reliability indices, supporting its cultural and psychometric adequacy for Turkish samples.
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