Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry 605006, India.
Icahn School of Medicine, Mount Sinai Beth Israel Hospital, New York, NY 10003, USA.
Asian J Psychiatr. 2022 Jul;73:103119. doi: 10.1016/j.ajp.2022.103119. Epub 2022 Apr 12.
There is a dearth of cross-cultural data on the psychometric properties of the revised Suicide Crisis Inventory (SCI)- 2. Our objective was to examine the factor structure, reliability, and validity of the SCI-2 among Indian adults.
Using an online survey method, between August 20, 2020 and January 31, 2021, an anonymous questionnaire containing general sociodemographic information and self-report measures was circulated over email and social media. Confirmatory factor analyses (CFA) of the SCI-2 was carried out. We also examined the internal consistency of the SCI-2 and tested its convergent validity against the Suicide Narrative Inventory (SNI) and the Perceived Stress Scale (PSS-10).
A total of 302 participants (Mean age = 43.5 ± 17.9 years, 53.6% female) were obtained. Results of the one-factor CFA indicated good model fit (χ2[1769] = 5368.75, p < 0.001, Comparative Fit Index [CFI] =0.99, Root mean square error of approximation [RMSEA] =0.08). Similarly, the five-factor CFA also exhibited strong model fit (χ2[1759] = 4215.54, p < 0.001, CFI = 1.00, RMSEA =0.07). Comparison of these models indicated that the five-factor model demonstrated superior model fit (Δχ2[10] = 278.88, p < 0.001). The SCI-2 total and subscale scores showed excellent internal consistency and good convergent validity against most domains of the SNI and PSS-10.
Among Indian adults, the SCI-2 demonstrated good psychometric properties with the proposed five-factor solution providing the best fit. These findings provide support for the SCI construct and its assessment with the SCI-2 in an Asian setting.
修订后的自杀危机量表（SCI）-2 在跨文化方面的心理测量学特性数据匮乏。本研究旨在检验 SCI-2 在印度成年人中的结构、信度和效度。
使用在线调查方法，于 2020 年 8 月 20 日至 2021 年 1 月 31 日期间，通过电子邮件和社交媒体分发包含一般社会人口学信息和自我报告测量的匿名问卷。对 SCI-2 进行验证性因子分析（CFA）。我们还检验了 SCI-2 的内部一致性，并测试了其与自杀叙事量表（SNI）和感知压力量表（PSS-10）的聚合效度。
共获得 302 名参与者（平均年龄=43.5±17.9 岁，53.6%为女性）。单因素 CFA 的结果表明模型拟合良好（χ2[1769] = 5368.75，p < 0.001，比较拟合指数[CFI] = 0.99，近似均方根误差[RMSEA] = 0.08）。同样，五因素 CFA 也表现出很强的模型拟合（χ2[1759] = 4215.54，p < 0.001，CFI = 1.00，RMSEA = 0.07）。比较这些模型表明，五因素模型具有更好的模型拟合（Δχ2[10] = 278.88，p < 0.001）。SCI-2 的总分和分量表得分显示出极好的内部一致性和与 SNI 和 PSS-10 大多数领域的良好聚合效度。
在印度成年人中，SCI-2 具有良好的心理测量学特性，提出的五因素解决方案提供了最佳拟合。这些发现为 SCI 结构及其在亚洲背景下使用 SCI-2 进行评估提供了支持。
