Katsarou Alexia, Panagiotakos Demosthenes, Zafeiropoulou Aggeliki, Vryonis Marios, Skoularigis Ioannis, Tryposkiadis Filippos, Papageorgiou Charalabos
Department of Cardiology, School of Medicine, University of Thessaly, Larissa, Greece.
Cent Eur J Public Health. 2012 Jun;20(2):104-9. doi: 10.21101/cejph.a3698.
To evaluate validity of the Greek version of a global measure of perceived stress PSS-14 (Perceived Stress Scale - 14 item).
The original PSS-14 (theoretical range 0-56) was translated into Greek and then back-translated. One hundred men and women (39 +/- 10 years old, 40 men) participated in the validation process. Firstly, participants completed the Greek PSS-14 and, then they were interviewed by a psychologist specializing in stress management. Cronbach's alpha (a) evaluated internal consistency of the measurement, whereas Kendall's tau-b and Bland & Altman methods assessed consistency with the clinical evaluation. Exploratory and Confirmatory Factor analyses were conducted to reveal hidden factors within the data and to confirm the two-dimensional character of the scale.
Mean (SD) PSS-14 score was 25(7.9). Strong internal consistency (Cronbach's alpha = 0.847) as well as moderate-to-good concordance between clinical assessment and PSS-14 (Kendall's tau-b = 0.43, p < 0.01) were observed. Two factors were extracted. Factor one explained 34.7% of variability and was heavily laden by positive items, and factor two that explained 10.6% of the variability by negative items. Confirmatory factor analysis revealed that the model with 2 factors had chi-square equal to 241.23 (p < 0.001), absolute fix indexes were good (i.e. GFI = 0.733, AGFI = 0.529), and incremental fix indexes were also adequate (i.e. NFI = 0.89 and CFI = 0.92).
The developed Greek version of PSS-14 seems to be a valid instrument for the assessment of perceived stress in the Greek adult population living in urban areas; a finding that supports its local use in research settings as an evaluation tool measuring perceived stress, mainly as a risk factor but without diagnostic properties.
评估希腊版感知压力全球测量量表PSS - 14（感知压力量表 - 14项）的有效性。
将原始的PSS - 14（理论范围0 - 56）翻译成希腊语，然后进行回译。100名男女（年龄39±10岁，男性40名）参与了验证过程。首先，参与者完成希腊语版PSS - 14，然后由一位专门从事压力管理的心理学家对他们进行访谈。克朗巴哈系数（α）评估测量的内部一致性，而肯德尔tau - b系数和布兰德 - 奥特曼方法评估与临床评估的一致性。进行探索性和验证性因素分析以揭示数据中的潜在因素并确认该量表的二维特征。
PSS - 14得分均值（标准差）为25（7.9）。观察到较强的内部一致性（克朗巴哈系数α = 0.847）以及临床评估与PSS - 14之间中度到良好的一致性（肯德尔tau - b系数 = 0.43，p < 0.01）。提取出两个因素。因素一解释了34.7%的变异性，且主要由正向项目构成；因素二解释了10.6%的变异性，由负向项目构成。验证性因素分析表明，具有2个因素的模型卡方值等于241.23（p < 0.001），绝对拟合指数良好（即GFI = 0.733，AGFI = 0.529），增量拟合指数也足够（即NFI = 0.89，CFI = 0.92）。
所开发的希腊语版PSS - 14似乎是评估居住在城市地区的希腊成年人群体感知压力的有效工具；这一发现支持其在研究环境中作为测量感知压力的评估工具的本地使用，主要作为一个风险因素，但不具备诊断特性。
