Department of Health Education and Health Promotion, School of Health, Social Development and Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran.
Department of Health Education and Health Promotion, School of Health, Social Determinants of Health Research Center, Gonabad University of Medical Sciences, Gonabad, Iran.
BMC Public Health. 2023 Mar 30;23(1):608. doi: 10.1186/s12889-023-15528-8.
Suicide and suicide attempts are among the most important indicators of mental health in the world. In this research, the validity and reliability of Literacy of Suicide Scale (LOSS) was examined in general people over the age of 18.
This cross-sectional psychometric study was conducted in 2022 among 952 general population in Iran. Participants were selected by two methods of proportional stratified sampling and simple random sampling. The internal consistency of the tools was assessed using Cronbach's alpha coefficient, and McDonald omega coefficient. Also, test-retest reliability was checked by Intraclass Correlation Coefficient (ICC).
In the confirmatory factor analysis section, the factor loading of all questions were above 0.4 and one questions were deleted and final model with four factors and 25 questions was confirmed (Some of goodness-of-fit indexes: AGFI = 0.910, RMSEA = 0.050, IFI = 0.901, and χ2/df = 3.333). For all questions, the Cronbach's alpha coefficient was 0.859, McDonald omega coefficient was 0.866, and ICC was 0.895. Finally, the Persian long version of LOSS was approved with 25 items and four subscales: causes/triggers (9 items), risk factors (7 items), signs and symptoms (5 items) and treatment/prevention (4 items).
The Persian long version of LOSS with four subscales and 25 items is an appropriate tool to investigate the state of suicide literacy in the public population.
自杀和自杀未遂是全球最重要的心理健康指标之一。在这项研究中，我们对一般人群（年龄大于 18 岁）进行了自杀文化量表（LOSS）的效度和信度检验。
这是一项 2022 年在伊朗进行的跨学科心理测量研究，共有 952 名一般人群参与。采用比例分层抽样和简单随机抽样两种方法选取参与者。采用克朗巴赫 α 系数和麦当劳 ω 系数评估工具的内部一致性，采用组内相关系数（ICC）评估重测信度。
在验证性因子分析部分，所有问题的因子负荷均高于 0.4，删除了一个问题，并最终确认了一个包含四个因子和 25 个问题的最终模型（部分拟合优度指数：拟合优度指数（AGFI）=0.910，近似误差均方根（RMSEA）=0.050，比较拟合指数（IFI）=0.901，卡方自由度比（χ2/df）=3.333）。对于所有问题，克朗巴赫 α 系数为 0.859，麦当劳 ω 系数为 0.866，ICC 为 0.895。最终，LOSS 的波斯语长版获得通过，包含 25 个项目和四个分量表：原因/触发因素（9 个项目）、危险因素（7 个项目）、迹象和症状（5 个项目）以及治疗/预防（4 个项目）。
波斯语长版 LOSS 具有四个分量表和 25 个项目，是一种适用于调查公众自杀文化知识状况的工具。
