IRSTEA, National Research Institute of Science and Technology for Environment and Agriculture, Research team "Information - Technologies - Environmental analysis - Agricultural processes", Montpellier SupAgro, Univ Montpellier, Montpellier, France.
Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; Department of Epidemiology and Public Health, University Hospital, Rennes, France.
Environ Res. 2019 May;172:522-528. doi: 10.1016/j.envres.2019.03.007. Epub 2019 Mar 4.
This study aimed to develop a questionnaire-based tool measuring the safety climate in vineyards and to assess its psychometric properties.
A literature search was conducted to identify the dimensions and items that constitute the safety culture construct in various occupational sectors and to draft a conceptual framework. Content validity appraisal was performed by 16 farm managers or pesticide operators. The resulting preliminary conceptual framework consisted of 9 dimensions and 42 questions. Then, a telephone survey was conducted in the French Aquitaine (Bordeaux) region with 312 vineyard workers. Item-total correlation tests, Cronbach's alpha analysis and a principal component analysis were performed to confirm the unidimensionality of the scale under construction. Structural equation modeling (SEM) techniques were used to verify the model hypothesized from the exploratory analyses and to determine how well it fits the data.
Exploratory analyses resulted initially in a 9-dimension, 20-item safety climate questionnaire. Internal consistency proved good with a Cronbach's alpha equal to 0.81. The SEM approach suggested two dimension groupings for a better fit of the data (7 dimensions operationalized through the same 20 items). Internal model parameters showed that the more influential dimensions of safety climate were Management commitment, Communication and feedback, Rules and practices, and Knowledge (all standardized path coefficients ≥ 0.7).
Owing to its good psychometric properties, we hope this score will help in drawing up relevant interventions aimed at improving safety culture, raising pesticide risk awareness, and hopefully inducing more sustainable practices in the medium-term future.
本研究旨在开发一种基于问卷的工具来测量葡萄园的安全氛围，并评估其心理测量学特性。
进行了文献检索，以确定构成不同职业领域安全文化结构的维度和项目，并起草了一个概念框架。16 名农场经理或农药操作人员对内容有效性进行了评估。由此产生的初步概念框架包括 9 个维度和 42 个问题。然后，在法国阿基坦（波尔多）地区对 312 名葡萄园工人进行了电话调查。进行了项目-总分相关测试、克朗巴赫α分析和主成分分析，以确认正在构建的量表的单维性。结构方程建模（SEM）技术用于验证从探索性分析中假设的模型，并确定其对数据的拟合程度。
探索性分析最初得出了一个 9 维度、20 个项目的安全氛围问卷。内部一致性证明良好，克朗巴赫α值为 0.81。SEM 方法建议对两个维度进行分组，以更好地拟合数据（通过相同的 20 个项目实现 7 个维度的操作）。内部模型参数表明，安全氛围的更具影响力的维度是管理承诺、沟通和反馈、规则和实践以及知识（所有标准化路径系数≥0.7）。
由于其良好的心理测量学特性，我们希望这个分数将有助于制定相关干预措施，旨在提高安全文化，提高农药风险意识，并希望在中期内促使更可持续的实践。
