Hosseini Zahra Sadat Javadi, Mokhtarinia Hamid Reza, Haraldsson Patrik, Gabel Charles Philip
Student Research Committee, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Department of Ergonomics, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Work. 2024;77(2):659-669. doi: 10.3233/WOR-220706.
To assess relevant environmental conditions in any work-setting requires a multidisciplinary perspective that is practical, valid, and reliable. This includes the physical, environmental, and psychosocial risk-factors. The Structured Multidisciplinary work Evaluation Tool (SMET) questionnaire simultaneously considers multiple work-related demands.
This study translated and culturally adapted the SMET into Persian and evaluated its psychometric properties in Persian industrial workers.
Cross-sectional translation and cross-cultural adaptation in five standardized phases. A convenience sample (n = 211) recruited from an industrial-occupation setting completed: the SMET; and the Rapid Upper Limb Assessment (RULA), and National Aeronautics and Space Administration Task Load Index (NASA-TLX) criteria; plus light and noise levels were concurrently assessed. Psychometric properties included: validity, with face (from confirmed language clarity, simplicity, and readability), content (via the content validity index, CVI, for equivalency and relevancy), criterion (through Pearson's r correlation with relevant criteria), and construct (through known group validity between participants with/without work-related musculoskeletal disorders, WMSDs); internal consistency (Cronbach's α); and test-retest reliability (intraclass correlation coefficient, ICC2.1).
Validity was confirmed with: face through the adaptation; content from suitable CVI values for items (CVI range = 0.78-1.0) and scale-total (CVI = 0.86); criterion from SMET associations with levels for light (r = - 0.42) and noise (r = 0.21), plus RULA (r = 0.42) and NASA-TLX (r = 0.39); and construct through participants with WMSD having significantly higher SMET total-scores (p = 0.01). Internal consistency (α= 0.89) and reliability (ICC2.1 = 0.87) were acceptable and strong.
This study indicated that the SMET Persian version had acceptable psychometric properties in an industrial occupational setting. Further investigation in longitudinal populations is recommended.
评估任何工作环境中的相关环境条件需要一个实际、有效且可靠的多学科视角。这包括物理、环境和社会心理风险因素。结构化多学科工作评估工具（SMET）问卷同时考虑了多个与工作相关的需求。
本研究将SMET翻译成波斯语并进行文化调适，评估其在波斯产业工人中的心理测量特性。
通过五个标准化阶段进行横断面翻译和跨文化调适。从一个工业职业环境中招募了一个便利样本（n = 211），他们完成了：SMET；快速上肢评估（RULA）和美国国家航空航天局任务负荷指数（NASA - TLX）标准；同时还评估了光照和噪音水平。心理测量特性包括：效度，通过表面效度（从确认的语言清晰度、简单性和可读性）、内容效度（通过内容效度指数CVI评估等效性和相关性）、效标效度（通过与相关标准的皮尔逊r相关性）和结构效度（通过有/无工作相关肌肉骨骼疾病（WMSD）的参与者之间的已知组效度）；内部一致性（克朗巴哈α系数）；以及重测信度（组内相关系数，ICC2.1）。
通过调适确认了表面效度；项目（CVI范围 = 0.78 - 1.0）和量表总分（CVI = 0.86）的合适CVI值确认了内容效度；SMET与光照水平（r = - 0.42）、噪音水平（r = 0.21）、RULA（r = 0.42）和NASA - TLX（r = 0.39）的关联确认了效标效度；有WMSD的参与者的SMET总分显著更高（p = 0.01）确认了结构效度。内部一致性（α = 0.89）和信度（ICC2.1 = 0.87）是可接受的且较强。
本研究表明，SMET波斯语版本在工业职业环境中具有可接受的心理测量特性。建议在纵向人群中进行进一步调查。
