Turkish Version of Grief Impairment Scale: Adaptation, and Psychometric Properties
Turkish Version of Grief Impairment Scale: Adaptation, and Psychometric Properties

Summary/Abstract: Objective: Grief Impairment Scale was developed as a rapid and flexible tool for assessing the biopsychosocial impairment associated with grief. This study aimed to evaluate the psychometric properties of the Turkish version of the scale. Method: This methodological study was conducted with 197 adults in Türkiye. The World Health Organization’s translation– back-translation protocol was followed. The Content Validity Index (CVI), Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA), and Cronbach’s alpha coefficient were examined. Results: The CVI value was 0.94. EFA revealed a single-factor structure consisting of five items, accounting for 63.54% of the total variance. CFA supported this structure with acceptable model fit indices (χ²/df = 7.79, RMSEA = 0.19, CFI = 0.94, GFI = 0.93, NFI = 0.94, SRMR = 0.05). Although the RMSEA and χ²/df values were higher than expected, error covariance was added between items 1 and 2 based on the modification indices. After this adjustment, the model showed excellent fit (χ² = 1.00, df = 4, χ²/df = 0.25, RMSEA = 0.00, CFI = 1.00, GFI = 1.00, NFI = 1.00, SRMR = 0.007). The scale demonstrated strong internal consistency (Cronbach’s α = 0.85). Significant positive correlations were found between the Grief Impairment Scale and the Mourning Scale (r = 0.56, p < 0.001). Conclusion: Turkish version of Grief Impairment Scale is a flexible, valid, and reliable instrument for assessing biopsychosocial impairment due to grief, and it can be effectively used by health professionals and researchers in both clinical practice and scientific studies.

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