摘要
本文研究NASA-TLX(National Aeronautics and Space Administration-Task Load Index,美国国家宇航局任务负荷指数)量表对VTS(Vienna Psychological Test System)测试产生的主观疲劳感进行评估的有效性和适用性。实验选取上海地铁驾驶员样本完成VTS测试模块,数据分析结果表明:(1)用NASA-TLX量表作为测量手段来评估VTS测试任务产生的心理负荷,结果表现出良好的信度和效度水平;(2)NASA-TLX量表的心理和体力需求维度与VTS测试中反应力和注意力绩效之间表现出显著相关性,证明量表具有的可靠准则关联效度,并可以一定程度上定性地对绩效表现做出预测判断。本文研究结果可为NASA-TLX量表的多样化应用和驾驶疲劳研究提供参考。
The objective of this study is to probe whether the Task Load Index（ NASA-TLX） is suitable for assessing the perceived fatigue result from Vienna Psychological Test System（ VTS） tests. The experimental samples who are the on-the-job drivers were selected randomly from Shanghai Metro Company,and should finish six test modules,which are closely related to driving work and reflects the characteristics of driver,selected from VTS. In the current research,NASA-TLX scale was employed to evaluate the subjective fatigue owned to VTS tests operation,and the VTS tests performance was regarded as the criterion in order to assess the validity of NASA-TLX scale as an evaluation technique to induced fatigue in VTS testers. Results show that：（ 1） NASA-TLX scale,used for evaluating VTS tests operation situation,has shown good internal consistency reliability and construct validity;（ 2） Significant correlations of between some factors of NASA-TLX and the performance of VTS test,such as the reaction and attention indexes,show a good criterion validity of NASA-TLX,NASA-TLX scale can serve as a helpful tool to evaluate testers＇ mental workload,to some extent,access to play an important role in predicting the task performance in the VTS tests. The research results will also provide a reference for the diversified application of NASA-TLX scale and the VTS,as a training tool,applied to driving fatigue research.
作者
钟晓
李健
刘志钢
黄远春
ZHONG Xiao;LI Jian;LIU Zhi-Gang;HUANG Yuan-Chun(Human Factors ＆ Ergonomics Lab,College of Urban Rail Transportation,Shanghai University of Engineering Science,201620,Shanghai,China)
出处
《人类工效学》
2018年第4期24-29,共6页
Chinese Journal of Ergonomics
基金
十三五国家重点研发计划子课题(项目编号:2017YFC0804900)
关键词
NASA-TLX量表
信度
效度
主观疲劳
VTS测试
驾驶员
轨道交通
交通安全
NASA - TLX scale
reliability
validity
subjective fatigue
vienna psychological test system
driver
rail transit
traffic safety
