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首页> 外文期刊>Applied Ergonomics >The Low-Event Task Subjective Situation Awareness (LETSSA) technique: Development and evaluation of a new subjective measure of situation awareness
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The Low-Event Task Subjective Situation Awareness (LETSSA) technique: Development and evaluation of a new subjective measure of situation awareness

机译：低事件任务主观情境意识（Letssa）技术：开发和评估新的情境衡量

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摘要

Situation awareness (SA) is an important component of an individual's ability to function in a complex environment. As such, it is essential to have effective measures of an individual's SA. The most widely used subjective measure of SA is the Situation Awareness Rating Technique [SART]. However, SART has been criticised for not predicting performance or objective SA, and being highly correlated with workload. This paper describes the development and testing of a new subjective measure of SA, the Low-Event Task Subjective Situation Awareness (LETSSA) measure. To evaluate LETSSA a train simulator study was conducted with 23 novice and 26 expert freight train drivers. LETSSA was able to detect differences in manipulated SA and was comparable to an established objective SA measure (SAGAT). LETSSA was significantly associated with performance but not significantly associated with workload. While further validation is required, LETSSA shows promise as an effective subjective measure of SA.
机译：情况意识（SA）是个人在复杂环境中运作能力的重要组成部分。 因此，必须有有效的个人SA措施。 SA的最广泛使用的主观测量是情况意识评级技术[SART]。 但是，SART因未预测性能或目标SA而受到批评，并与工作量高度相关。 本文介绍了对SA的新主观衡量标准的开发和测试，低事件任务主观情境意识（Letssa）措施。 为了评估Letssa，通过23项新手和26台专家货运司机进行火车模拟器研究。 Letssa能够检测到操纵SA的差异，并且与已建立的目标SA测量（SAGAT）相当。 Letssa与性能显着相关，但与工作量没有显着相关。 虽然需要进一步验证，但让我们将承诺显示为SA的有效主观度量。

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