This study evaluated the reliability, face validity, content validity, and factor structure of the Persian version of the SSOSH scale for Iranian patients with mental health disorders. Our sample's size provided essential data on the characteristics of such individuals. According to Lynn's guidelines, the CVI should exceed 0.78 when judged by six or more experts, and in our study, each item achieved a CVI above this threshold (
28). Additionally, Cronbach’s α demonstrated satisfactory internal consistency for the final instrument, while an Omega coefficient of 0.818 further indicated a good level of internal reliability. This could be attributed to varying factor loadings across the items.
While the original SSOSH scale had a unidimensional factor structure, our analysis revealed a three-factor structure for the Persian translation. We labeled these factors "Negative Self-Evaluation," "Self-Esteem Boost," and "Resilience of Self-Image," each reflecting an important aspect of the Self-stigma associated with seeking help. The emergence of this three-factor structure may be influenced by cultural differences, unique interpretations of the items, and variations in the sample population.
Interestingly, both the Revised (SSOSH-7) and Ultra-Brief (SSOSH-3) versions of the SSOSH scale (
25) include items 1, 6, and 8. Since these scales are constructed by considering factor loadings and other psychometric properties, this may suggest that Factor 1, labeled "Negative Self-Evaluation," plays a central role in how individuals react to the idea of seeking psychiatric help in the Persian context.
However, the subsequent CFA did not fully support this three-factor structure. The EFA, being more flexible, can identify patterns that CFA, with its stricter criteria, may not confirm. To address this discrepancy, future studies could use larger, more demographically diverse samples and conduct cognitive interviews to further investigate and refine the Persian version of the SSOSH scale.
As mentioned, the SSOSH scale has been translated into various languages. In a cross-national examination of the SSOSH scale across six nations (England, Greece, Israel, Taiwan, Turkey, and the United States), internal reliability ranged from 0.77 in Greece to 0.89 in England for the 10-item scale, demonstrating its adequacy for research purposes (
29). This study also confirmed the unidimensional structure of the scale across these countries, showing that the SSOSH scale can be used globally to investigate Self-stigma related to help-seeking. Yan Zhou et al. translated the SSOSH scale into German and Chinese (
30) following Brislin's recommended translation-back-translation method (
31). Similarly, we used the WHO translation method, which also included translation-back-translation but with a different approach.
The Spanish version of SSOSH was validated among a group of Colombian medical students by Brayan Larrahondo et al., who reported an internal consistency of 0.80 and a test-retest repeatability CCI of 0.77 (
32). In Greece, the scale was validated with college students, similar to the Spanish version, and demonstrated satisfactory discrimination and criterion validity, with a test-retest reliability of 0.89 (
33). Our Persian version of the SSOSH scale also demonstrated acceptable reliability and validity in this study, although our sample population included individuals with mental health disorders, in contrast to the student populations in other versions. Additionally, while other studies calculated test-retest reliability, structural, convergent, and divergent validity, our study did not include these due to methodological differences.
Before the development of the SSOSH scale (
13), no sufficient conceptual or measurement tool existed for assessing internalized Self-stigma and help-seeking tendencies. As a short and easy-to-complete scale, the SSOSH provides an efficient tool for evidence-based research and interventions. Our study enables the measurement of Self-stigma among Iranian patients, offering mental health professionals in Iran a reliable tool to detect and address Self-stigma, which could promote help-seeking behaviors. Researchers can now use the Persian version to assess Self-stigma in various mental health settings. Furthermore, comparing Self-stigma among Iranians and residents of other countries could inform mental health policies and interventions. This validation supports further research on mental health stigma in Persian-speaking communities, contributing to better public health strategies and improving access to mental health services, ultimately enhancing patient outcomes.
This study had several limitations. We lacked a comparable instrument to assess test-retest reliability and different aspects of construct validity, which should be evaluated in future studies. Additionally, the convenience sampling method limits the generalizability of our findings. Future research should focus on assessing other types of validity for the SSOSH scale to complement the results of this study.
5.1. Conclusions
The Persian SSOSH scale demonstrates good internal consistency, as evidenced by Cronbach's alpha and McDonald's omega values, along with acceptable face and content validity for use among Persian-speaking patients with mental health disorders. However, while the three-factor model derived from EFA and used in CFA fits the data reasonably well, there remains room for improvement. This study provides solid evidence to recommend the adoption of the Persian version of the SSOSH scale for assessing Self-stigma in Iranian patients. Additionally, its application will enable researchers to compare Self-stigma research findings among Iranian patients with studies conducted in other countries.