Han Jin Sil, Lee Eun-Hyun, Suh Tongwoo, Hong Chang Hyung
Gimpo Mental Health Center, Gimpo, South Korea.
Graduate School of Public Health, Ajou University, Suwon, South Korea.
Scand J Caring Sci. 2017 Mar;31(1):210-216. doi: 10.1111/scs.12332. Epub 2016 May 10.
The purpose of this study was to translate the Suicidal Ideation Scale (SIS) into Korean (SIS-K) and then evaluate its psychometric properties in mentally ill Korean patients living in the community.
The SIS-K was translated into Korean using a translation and back-translation technique. A sample of 396 patients with mental disorders was recruited from regional mental health centres in Korea. Factorial-construct validity was tested using both exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The data were randomly split into two subsamples: one used for EFA to identify the underlying structure of the items, and the other used for CFA to test whether the underlying structure was supported by actual data. Convergent validity, known-groups validity and internal-consistency reliability were tested.
Exploratory factor analysis extracted nine items clustered into two subscales that accounted for 68.59% of the variance. One item ('I feel there is no solution to my problems other than taking my own life') was deleted. The structure of the two subscales was supported by CFA. The SIS-K score was moderately correlated with depression, and the scale demonstrated convergent validity. The SIS-K scores were significantly higher in patients who had attempted suicide, implying the presence of satisfactory known-groups validity. Cronbach's alpha of the total SIS-K was 0.91.
The study has demonstrated the excellent psychometric properties of the SIS-K. The SIS-K is brief and easy to complete, and so it can be applied in both practice and research to patients with mental disorders. This cultural validation of the SIS-K will promote both domestic and international studies of suicidal ideation.
本研究旨在将自杀意念量表（SIS）翻译成韩语（SIS-K），并评估其在社区中患有精神疾病的韩国患者中的心理测量特性。
采用翻译和回译技术将SIS-K翻译成韩语。从韩国地区心理健康中心招募了396名精神障碍患者作为样本。使用探索性因素分析（EFA）和验证性因素分析（CFA）来测试因素结构效度。数据被随机分为两个子样本：一个用于EFA以识别项目的潜在结构，另一个用于CFA以测试实际数据是否支持潜在结构。测试了收敛效度、已知群体效度和内部一致性信度。
探索性因素分析提取了9个项目，聚为两个子量表，解释了68.59%的方差。删除了一个项目（“我觉得除了自杀之外，我的问题没有其他解决办法”）。CFA支持了两个子量表的结构。SIS-K得分与抑郁呈中度相关，该量表显示出收敛效度。曾尝试自杀的患者的SIS-K得分显著更高，这意味着存在令人满意的已知群体效度。SIS-K总分的Cronbach's alpha为0.91。
该研究证明了SIS-K具有出色的心理测量特性。SIS-K简短且易于完成，因此可应用于对精神障碍患者的实践和研究中。SIS-K的这种文化效度验证将促进国内外对自杀意念的研究。
