The Perceived Stress Scale: Reliability and Validity Study in the Czech Republic

Objectives. The aim of this study was to create a Czech translation of the Perceived Stress Scale (PSS), to assess its psychometric properties on a representative sample of the Czech general adult population, and to compare the original 14-item version (PSS-14) with the shortened 10-item (PSS-10) and four-item (PSS-4) versions.
Sample and setting. Two pilot studies were conducted to create the final Czech translation of the scale (n = 365 and n = 420). The final version of the Czech PSS was administered to a sample of the Czech general adult population (n = 1725 of whom 981 were women, M = 44.32, SD = 12.8). The Beck Depression Inventory (BDI-II) or the State-Trait Anxiety Inventory (STAI) were administered alongside the PSS to a part of the sample. A retest measurement after 14 days was conducted (n = 159).
Statistical analysis. Using the confirmatory factor analysis, the one-factor, two-factor and bifactor models were compared. We assessed the internal consistency, stability in time, and convergent validity of the scale, as well as the known-group differences. The three versions of the PSS were compared.
Results. The confirmatory factor analysis supported the bifactor model of the PSS-14 and PSS-10, and the two-factor model of the PSS-4. All versions of the scale showed good internal consistency and stability in time. There was a moderate to strong positive correlation between the PSS and the BDI-II and STAI. Differences based on age, sex, education level, and situational factors were found. Overall, the PSS-10 showed the best psychometric properties of all three versions of the scale.
Study limitation. The sample consisted mostly of highly educated respondents.

{'Objectives': '本研究旨在构建感知压力量表（PSS）的捷克语翻译版本，评估其在代表捷克普通成年人群体的样本中的心理测量学特性，并将原始的14项版本（PSS-14）与简化的10项（PSS-10）及4项（PSS-4）版本进行对比。', 'Sample_and_setting': '为构建最终捷克语版本的量表，进行了两项试点研究（样本量分别为365人和420人）。最终版本的捷克语PSS被应用于捷克普通成年人群体的样本中（共1725人，其中女性981人，平均年龄44.32岁，标准差12.8）。对于部分样本，在PSS测试的同时还进行了贝克抑郁量表（BDI-II）或状态-特质焦虑量表（STAI）的测试。在14天后对样本进行了重测（样本量为159人）。', 'Statistical_analysis': '通过验证性因素分析，比较了一元、二元和双因素模型。评估了量表的内部一致性、时间稳定性、收敛效度以及已知的群体差异。对PSS的三个版本进行了比较。', 'Results': '验证性因素分析支持PSS-14和PSS-10的双因素模型，PSS-4的二元模型。所有版本的量表均显示出良好的内部一致性和时间稳定性。PSS与BDI-II和STAI之间存在中等至强的正相关。根据年龄、性别、教育水平和情境因素发现了差异。总体而言，PSS-10在三个版本中显示出最佳的心理学特性。', 'Study_limitation': '样本主要由高教育水平的受访者组成。'}