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排序方式: 共有69条查询结果,搜索用时 15 毫秒
1.
电力安全文化评价工具的编制 总被引:1,自引:1,他引:0
为探索电力安全文化结构,编制出具有较高信效度的评价工具。对深度访谈、参与观察采集的73个情景性行为片段进行编码分析,获取6个类中心,以此为基础编制量表;经试测和大规模抽样调查,对741名有效样本数据进行因素分析和信效度检验。结果表明:电力安全文化的评价指标由管理效力、人性观、规则执行、公平公正性和工作态度构成;因子分析所获因子与理论构想的类中心基本吻合,验证性因素分析所有指标均证明模型拟合较好;量表的再测信度为0.956(P<0.001),内部一致性系数为0.932(P<0.001)。所有统计结论表明,电力安全文化评价工具具备较高信效度,可以用于评估电力企业安全文化。 相似文献
2.
本文通过大量资料的搜集,概括出了影响员工不安全行为的众多因素,并根据他们的可控性进行了分类.在此理论研究的基础上,用调查问卷的方法,构建了企业员工不安全行为的影响因素量表,并通过spss16.0软件包对其进行因素分析,检验量表的效度和信度,最终形成了四个企业员工不安全行为影响因素正式量表.其中包括:企业员工不安全行为个人安全素质影响因素量表、企业员工不安全行为领导影响因素量表、企业员工不安全行为组织影响因素量表和企业员工不安全行为工作内容和环境影响因素量表.此外,本文还对中交天航第五经理部的施工人员进行了实证研究,用spss16.0软件包对搜集到的数据进行分析,包括:各量表中包含的题项的内部分析、四个量表中所有题项的整体分析和每个量表中的群体差异性分析,并在以上分析的基础上,最终得出了该企业对员工不安全行为影响因素的管理现状. 相似文献
3.
道路交通噪声自动监测应用探讨 总被引:3,自引:0,他引:3
结合城市道路路网状况及实际噪声监测数据和历史实验数据,对道路交通噪声自动监测数据的有效性、监测点位布设进行了研究,对道路交通噪声监测点位优化提出建议。 相似文献
4.
Michael Ahlheim Benchaphun Ekasingh Jirawan Kitchaicharoen Andreas Neef Chapika Sangkapitux 《Journal of Environmental Planning and Management》2010,53(2):163-182
Although contingent valuation is the dominant technique for the valuation of public projects, especially in the environmental sector, the high costs of contingent valuation surveys prevent the use of this method for the assessment of relatively small projects. The reason for this cost problem is that typically only contingent valuation studies which are based on face-to-face interviews are accepted as leading to valid results. Particularly in countries with high wages, face-to-face surveys are extremely costly considering that for a valid contingent valuation study a minimum of 1000 completed face-to-face interviews is required. This paper tries a rehabilitation of mail surveys as low-budget substitutes for costly face-to-face surveys. Based on an empirical contingent valuation study in Northern Thailand, it is shown that the validity of mail surveys can be improved significantly if so-called Citizen Expert Groups are employed for a thorough survey design. 相似文献
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Despite the fact that virtual environments are increasingly deployed to study the relation between urban planning, physical and social disorder, and fear of crime, their ecological validity for this type of research has not been established. This study compares the effects of similar signs of public disorder (litter, warning signs, cameras, signs of vandalism and car burglary) in an urban neighborhood and in its virtual counterpart on the subjective perception of safety and livability of the neighborhood. Participants made a walking tour through either the real or the virtual neighborhood, which was either in an orderly (baseline) state or adorned with numerous signs of public disorder. During their tour they reported the signs of disorder they noticed and the degree to which each of these affected their emotional state and feelings of personal safety. After finishing their tour they appraised the perceived safety and livability of the environment. Both in the real and in the simulated urban neighborhood, signs of disorder evoked associations with social disorder. In all conditions, neglected greenery was spontaneously reported as a sign of disorder. Disorder did not inspire concern for personal safety in reality and in the virtual environment with a realistic soundscape. However, in the absence of sound disorder compromised perceived personal safety in the virtual environment. Signs of disorder were associated with negative emotions more frequently in the virtual environment than in its real-world counterpart, particularly in the absence of sound. Also, signs of disorder degraded the perceived livability of the virtual, but not of the real neighborhood. Hence, it appears that people focus more on details in a virtual environment than in reality. We conclude that both a correction for this focusing effect and realistic soundscapes are required to make virtual environments an appropriate medium for both etiological (e.g. the effects of signs of disorder on fear of crime) and intervention (e.g. CPTED) research. 相似文献
7.
应用后续确定性问题校正条件价值评估——以福建省鼓山风景名胜区非使用价值评估为例 总被引:1,自引:0,他引:1
条件价值(CV)法是评估环境与资源价值的重要手段,后续确定性问题可有效便捷地提高CV结果的有效性。应用10刻度量化表式后续确定性问题对鼓山风景名胜区非使用价值CV评估结果进行校正。问卷采用双边界二分式,面对面调查获得518份有效调查问卷。结果显示:具有正支付意愿的受访者,其付费加入"鼓山保护协会"的确定度呈正态分布,确定度的平均值为6.72;确定度与受访者的收入、受访者对鼓山的熟悉程度呈显著正相关;受访者对起始投标值敏感。当确定度门槛值取7或8时,正支付率从51.5%分别下降至27.8%或23.3%,而平均支付意愿分别从33.24元下降至19.74元或16.36元,采用后续确定性问题校正后CV结果下降了一半左右。 相似文献
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Safety climate measurement at workplace in China: A validity and reliability assessment 总被引:1,自引:0,他引:1
Si-Hao Lin Wen-Juan Tang Jian-Ying Miao Zhi-Ming Wang Pei-Xi Wang 《Safety Science》2008,46(7):1037-1046
10.
The predictive validity of safety climate 总被引:1,自引:0,他引:1
Johnson SE 《Journal of Safety Research》2007,38(5):511-521
PROBLEM: Safety professionals have increasingly turned their attention to social science for insight into the causation of industrial accidents. One social construct, safety climate, has been examined by several researchers [Cooper, M. D., & Phillips, R. A. (2004). Exploratory analysis of the safety climate and safety behavior relationship. Journal of Safety Research, 35(5), 497-512; Gillen, M., Baltz, D., Gassel, M., Kirsch, L., & Vacarro, D. (2002). Perceived safety climate, job Demands, and coworker support among union and nonunion injured construction workers. Journal of Safety Research, 33(1), 33-51; Neal, A., & Griffin, M. A. (2002). Safety climate and safety behaviour. Australian Journal of Management, 27, 66-76; Zohar, D. (2000). A group-level model of safety climate: Testing the effect of group climate on microaccidents in manufacturing jobs. Journal of Applied Psychology, 85(4), 587-596; Zohar, D., & Luria, G. (2005). A multilevel model of safety climate: Cross-level relationships between organization and group-level climates. Journal of Applied Psychology, 90(4), 616-628] who have documented its importance as a factor explaining the variation of safety-related outcomes (e.g., behavior, accidents). Researchers have developed instruments for measuring safety climate and have established some degree of psychometric reliability and validity. The problem, however, is that predictive validity has not been firmly established, which reduces the credibility of safety climate as a meaningful social construct. The research described in this article addresses this problem and provides additional support for safety climate as a viable construct and as a predictive indicator of safety-related outcomes. METHODS: This study used 292 employees at three locations of a heavy manufacturing organization to complete the 16 item Zohar Safety Climate Questionnaire (ZSCQ) [Zohar, D., & Luria, G. (2005). A multilevel model of safety climate: Cross-level relationships between organization and group-level climates. Journal of Applied Psychology, 90(4), 616-628]. In addition, safety behavior and accident experience data were collected for 5 months following the survey and were statistically analyzed (structural equation modeling, confirmatory factor analysis, exploratory factor analysis, etc.) to identify correlations, associations, internal consistency, and factorial structures. RESULTS: Results revealed that the ZSCQ: (a) was psychometrically reliable and valid, (b) served as an effective predictor of safety-related outcomes (behavior and accident experience), and (c) could be trimmed to an 11 item survey with little loss of explanatory power. IMPACT ON INDUSTRY: Practitioners and researchers can use the ZSCQ with reasonable certainty of the questionnaire's reliability and validity. This provides a solid foundation for the development of meaningful organizational interventions and/or continued research into social factors affecting industrial accident experience. 相似文献