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The Low-Event Task Subjective Situation Awareness (LETSSA) technique: Development and evaluation of a new subjective measure of situation awareness

journal contribution
posted on 04.03.2019, 00:00 by J Rose, Christopher Bearman, J Dorrian
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. © 2017 Elsevier Ltd

Funding

Category 4 - CRC Research Income

History

Volume

68

Start Page

273

End Page

282

Number of Pages

10

eISSN

1872-9126

ISSN

0003-6870

Publisher

Pergamon Press, UK

Peer Reviewed

Yes

Open Access

No

Acceptance Date

11/12/2017

External Author Affiliations

University of South Australia

Author Research Institute

Appleton Institute

Era Eligible

Yes

Journal

Applied Ergonomics

Exports