{"title":"Translation and psychometric evaluation of the Witness Perceived Safety Scale of prehospital emergency care.","authors":"Farzad Vagrimogadam, Mansoore Karimollahi, Saeid Mehri","doi":"10.1186/s12873-025-01226-8","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Timely, effective and safety out-of hospital care and transfer to hospital by prehospital emergency medical services significantly impacts patient outcomes. This study aimed at translation and psychometric evaluation of the witness perceived safety scale of prehospital emergency care.</p><p><strong>Methods: </strong>The methodological design was utilized to verify the validity and reliability of the Witness Perceived Safety Scale across two phases: the translation process and an assessment of its validity and reliability. Construct validity was assessed using confirmatory factor analysis. The convergent validity, discriminant validity, and reliability of the scale were also evaluated.</p><p><strong>Results: </strong>The Witness Perceived Safety Scale comprises 10 items that were retained following cross-cultural translation. Both face and content validity were deemed acceptable. The fit indices from the confirmatory factor analysis supported the model's appropriate fit (χ²/df = 2.41; IFI = 0.96; CFI = 0.96; RMSEA = 0.075). Cronbach's α coefficient for the total scale was 0.899.</p><p><strong>Conclusion: </strong>The Persian version of the Witness Perceived Safety Scale provides a reliable assessment of witnesses' perceptions of safety during emergency assistance and transfers.</p><p><strong>Clinical trial number: </strong>Not applicable.</p>","PeriodicalId":9002,"journal":{"name":"BMC Emergency Medicine","volume":"25 1","pages":"65"},"PeriodicalIF":2.3000,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12008849/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BMC Emergency Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1186/s12873-025-01226-8","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"EMERGENCY MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Timely, effective and safety out-of hospital care and transfer to hospital by prehospital emergency medical services significantly impacts patient outcomes. This study aimed at translation and psychometric evaluation of the witness perceived safety scale of prehospital emergency care.
Methods: The methodological design was utilized to verify the validity and reliability of the Witness Perceived Safety Scale across two phases: the translation process and an assessment of its validity and reliability. Construct validity was assessed using confirmatory factor analysis. The convergent validity, discriminant validity, and reliability of the scale were also evaluated.
Results: The Witness Perceived Safety Scale comprises 10 items that were retained following cross-cultural translation. Both face and content validity were deemed acceptable. The fit indices from the confirmatory factor analysis supported the model's appropriate fit (χ²/df = 2.41; IFI = 0.96; CFI = 0.96; RMSEA = 0.075). Cronbach's α coefficient for the total scale was 0.899.
Conclusion: The Persian version of the Witness Perceived Safety Scale provides a reliable assessment of witnesses' perceptions of safety during emergency assistance and transfers.
期刊介绍：
BMC Emergency Medicine is an open access, peer-reviewed journal that considers articles on all urgent and emergency aspects of medicine, in both practice and basic research. In addition, the journal covers aspects of disaster medicine and medicine in special locations, such as conflict areas and military medicine, together with articles concerning healthcare services in the emergency departments.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
