Validation of the medium and short version of CENSOPAS-COPSOQ: a psychometric study in the Peruvian population

<strong>Background: </strong>The presence of psychosocial risks at work is associated with mental and physical health issues in workers. The study aim was to adapt the COPSOQ-ISTAS21 Medium-Version to the Peruvian context and to develop a Short-Version of the instrument. <strong>Method: </strong>Cross-sectional design study. The COPSOQ-ISTAS21 Medium Version was used. A confirmatory factor analysis was performed to determine the internal structure of each subdimension (first-order) and dimension (second-order) using the Robust Maximum Likelihood estimation method, and classic fit indices in the literature (CFI, SRMR, RMSEA). Internal consistency was evaluated using the alpha and omega coefficients. A short version was developed based on the items with the highest factorial load and that reduce the factorial complexity. <strong>Results: </strong>A total of 1707 participants were evaluated. In the confirmatory factor analysis, the goodness-of-fit indices for seventeen of the 20 one-dimensional models (subdimensions) were identified; two subdimensions could not be evaluated because they presented only two items. When conducting a multidimensional analysis, we identified that all second-order models presented optimal goodness-of-fit indices, except “psychological demands at work”. The latter required adding four pairs of correlated errors to reach adequate fit values. Finally, a short version of only 31 items was designed from the items with optimal fit indices. <strong>Conclusions:</strong> The new adapted versions of COPSOQ-ISTAS21 were renamed CENSOPAS-COPSOQ. The CENSOPAS-COPSOQ is an instrument with sufficient evidence of validity and reliability in its medium and short version, which is why its use is recommended in Peruvian work centers to identify the evaluation and prevention of psychosocial risks at work in Peru. <br> <strong>Manuscritpt: </strong>https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-022-13328-0

**研究背景：** 工作场所存在的心理社会风险与劳动者的心理及躯体健康问题密切相关。本研究旨在将COPSOQ-ISTAS21中型版（COPSOQ-ISTAS21 Medium-Version）进行秘鲁文化调适，并开发该测评工具的简版。
**研究方法：** 本研究采用横断面研究设计，使用COPSOQ-ISTAS21中型版作为测评工具。采用稳健极大似然估计法，结合学界经典拟合指标（CFI、SRMR、RMSEA），开展验证性因子分析，以明确各一阶子维度与二阶维度的内部结构；并通过克朗巴赫α系数与欧米伽系数评估工具的内部一致性。基于因子载荷最高且能降低因子复杂度的测评条目，开发该工具的简版。
**研究结果：** 共纳入1707名研究对象进行评估。验证性因子分析结果显示，20个单维子维度模型中有17个达到良好拟合标准；剩余2个子维度因仅包含2个条目，无法开展评估。开展多维度分析时发现，除“工作心理需求”维度外，其余所有二阶维度模型均达到最优拟合标准；“工作心理需求”维度需纳入4对相关误差项，方可达到合格拟合值。最终基于拟合表现最优的条目，开发出仅含31个条目的简版测评工具。
**研究结论：** 经调适后的COPSOQ-ISTAS21新版本被重新命名为CENSOPAS-COPSOQ。CENSOPAS-COPSOQ的中型版与简版均具备充分的效度与信度证据，因此推荐在秘鲁各类工作场所中使用该工具，以开展工作场所心理社会风险的识别、评估与预防工作。
**文献来源：** https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-022-13328-0