The Revised Suicide Crisis Inventory (SCI-2): Factor Structure, Internal Consistency, and Validity in a Brazilian Sample.

IF 3.6 3区医学 Q1 PSYCHIATRY Revista Brasileira de Psiquiatria Pub Date : 2024-02-20 DOI:10.47626/1516-4446-2023-3366

Jefté Peper-Nascimento, Megan L Rogers, Jenelle A Richards, Alexandre Paim Diaz, Luciane B Ceretta, Gabriela S Keller, João Quevedo, Igor Galynker, Samira S Valvassori

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Abstract

Objective: To examine the factor structure, reliability, and validity of the Brazilian version of the Suicide Crisis Inventory (SCI-2) among Brazilian adults.

Methods: The SCI-2 was cross-culturally adapted into Portuguese and administered to 2,265 individuals in the Brazilian community. Confirmatory factor analyses, internal consistency, and convergent and criterion validity against the suicidal narrative, stressful life events, suicidal ideation, and suicide attempts were examined.

Results: The revised one-factor model of the SCI-2 resulted in adequate, but not optimal, model fit (χ2[1539] = 31,442.79, p < .001, CFI = .99, TLI = .99, RMSEA = .09, SRMR = .05). The revised five-factor model, on the other hand, demonstrated good fit (χ2[1529] = 14,174.86, p < .001, CFI = 1.00, TLI = 1.00, RMSEA = .06, SRMR = .04). Comparison of these two models indicated that the five-factor exhibited a superior model fit to the one-factor model. The SCI-2 total and subscales showed strong internal consistency, good convergent, and criterion validity in relation to stressful life events, suicidal narrative (except goal disengagement subscale), suicidal ideation, and suicide attempts.

Conclusions: These findings indicate that the Brazilian version of the SCI-2 is a valid tool for measuring symptoms of the Suicide Crisis Syndrome.

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修订版自杀危机量表（SCI-2）：巴西样本中的因子结构、内部一致性和有效性。

目的：研究巴西成年人自杀危机量表（SCI-2）的因子结构、可靠性和有效性：研究巴西成年人自杀危机量表（SCI-2）巴西版的因子结构、可靠性和有效性：将 SCI-2 跨文化改编成葡萄牙语，并对巴西社区的 2265 人进行施测。对自杀叙述、生活压力事件、自杀意念和自杀未遂进行了确认性因素分析、内部一致性、聚合效度和标准效度：修订后的 SCI-2 单因素模型具有足够的模型拟合度（χ2[1539] = 31,442.79, p < .001，CFI = .99，TLI = .99，RMSEA = .09，SRMR = .05），但不是最佳拟合度。而修订后的五因素模型则表现出良好的拟合度（χ2[1529] = 14,174.86, p < .001, CFI = 1.00, TLI = 1.00, RMSEA = .06, SRMR = .04）。这两个模型的比较表明，五因素模型的拟合效果优于单因素模型。SCI-2总量表和分量表在生活压力事件、自杀叙述（目标脱离分量表除外）、自杀意念和自杀未遂方面显示出较强的内部一致性、良好的收敛性和标准效度：这些研究结果表明，巴西版 SCI-2 是测量自杀危机综合征症状的有效工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Brasileira de Psiquiatria 医学-精神病学

CiteScore

6.60

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The Revista Brasileira de Psiquiatria (RBP) is the official organ of the Associação Brasileira de Psiquiatria (ABP - Brazilian Association of Psychiatry). The Brazilian Journal of Psychiatry is a bimonthly publication that aims to publish original manuscripts in all areas of psychiatry, including public health, clinical epidemiology, basic science, and mental health problems. The journal is fully open access, and there are no article processing or publication fees. Articles must be written in English.