External validity of a generic safety climate scale for lone workers across different industries and companies
External validity of a generic safety climate scale for lone workers across different industries and companies
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DOI：
10.1016/j.aap.2013.10.013
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发表时间：
2014-02-01
影响因子：
5.9
通讯作者：
Chang, Wen-Ruey
中科院分区：
文献类型：
--
作者：
Lee, Jin;Huang, Yueng-hsiang;Chang, Wen-Ruey
目的：本研究的目的是检查的外部效度的12个项目的通用安全气候量表孤独的工人，以评估在各种孤独的工作环境中的安全气候测量的规模的普遍使用的适当性。方法：采用基于验证性因素分析（CFA）和基于项目反应理论（IRT）的方法，对来自货运、电力和有线电视行业的11家公司的孤独工人的通用安全气氛量表的测量等效性进行了检验。相当强有力的证据ME观察到组织和集团层面的通用安全气候分量表。尽管在不同的单独工作设置中观察到项目截距具有显著的不变性，但在基于CFA的ME检验的最稳健步骤中，绝对模型拟合指数仍然令人满意。IRT为基础的ME测试确定只有一个差异功能项目从组织层面的通用安全气候子量表，但其影响是最小的和强大的ME supported.Implications：通用安全气候量表孤独工人报告良好的外部效度和支持孤独工人之间的安全气候的共同特征的存在。该量表可作为一种有效的安全评价工具，在各种孤独的工作情况。(C)2013爱思唯尔有限公司保留所有权利。
Purpose: The goal of this study was to examine the external validity of a 12-item generic safety climate scale for lone workers in order to evaluate the appropriateness of generalized use of the scale in the measurement of safety climate across various lone work settings. External validity evidence was established by investigating the measurement equivalence (ME) across different industries and companies.Method: Confirmatory factor analysis (CFA)-based and item response theory (IRT)-based perspectives were adopted to examine the ME of the generic safety climate scale for lone workers across 11 companies from the trucking, electrical utility, and cable television industries.Results: Fairly strong evidence of ME was observed for both organization- and group-level generic safety climate sub-scales. Although significant invariance was observed in the item intercepts across the different lone work settings, absolute model fit indices remained satisfactory in the most robust step of CFA-based ME testing. IRT-based ME testing identified only one differentially functioning item from the organization-level generic safety climate sub-scale, but its impact was minimal and strong ME was supported.Implications: The generic safety climate scale for lone workers reported good external validity and supported the presence of a common feature of safety climate among lone workers. The scale can be used as an effective safety evaluation tool in various lone work situations. (C) 2013 Elsevier Ltd. All rights reserved.