Siau Ching Sin, Zhang Jie, Chen Won Sun, Mohd Saat Nur Zakiah, Lew Bob, Ma Xiaodong, Kõlves Kairi
Centre for Community Health Studies, Faculty of Health Sciences, University Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
School of Public Health, Shandong University, Jinan 250012, China.
Behav Sci (Basel). 2024 Dec 2;14(12):1157. doi: 10.3390/bs14121157.
The Psychological Strain Scale (PSS) has been widely used in various populations to assess the risks of suicidality and mental disorders. The current study aims to shorten the original 40-item scale and test its psychometric properties. Data were derived from three samples in China: (1) undergraduate students ( = 10,742), (2) non-medical office employees ( = 1044), and (3) hospital workers ( = 949). A questionnaire was administered to the samples at about the same time of the year 2017. Data were randomly divided into Sub-study 1 (70% of the sample) and Sub-study 2 (30% of the sample). In Sub-study 1, principal component analyses were run and five items with the highest factor loadings within each subscale were retained, resulting in a 20-item PSS scale. Cronbach's α estimates were above 0.70. In Sub-study 2, confirmatory factor analyses for the three samples revealed RMSEA values below 0.10, PNFI values below 0.50 for all samples, and CFI, TLI and NFI values above 0.90 for the student and non-medical office employee samples, but the hospital worker sample had a TLI of 0.88. The PSS-20 and its subscales were significantly associated with past-year suicidal ideation. The PSS-20 has acceptable psychometric properties but requires further testing in university students and hospital workers.
心理压力量表（PSS）已在各类人群中广泛应用，以评估自杀倾向和精神障碍的风险。本研究旨在缩短原始的40项量表并测试其心理测量特性。数据来自中国的三个样本：（1）本科生（n = 10742），（2）非医疗办公人员（n = 1044），以及（3）医院工作人员（n = 949）。2017年大约同一时间对这些样本进行了问卷调查。数据被随机分为子研究1（样本的70%）和子研究2（样本的30%）。在子研究1中，进行了主成分分析，并保留了每个子量表中因子载荷最高的五个项目，从而得到了一个20项的PSS量表。克朗巴哈α系数估计值高于0.70。在子研究2中，对三个样本的验证性因子分析显示，所有样本的RMSEA值低于0.10，PNFI值低于0.50，学生和非医疗办公人员样本的CFI、TLI和NFI值高于0.90，但医院工作人员样本的TLI为0.88。PSS - 20及其子量表与过去一年的自杀意念显著相关。PSS - 20具有可接受的心理测量特性，但需要在大学生和医院工作人员中进一步测试。
