Techniques to accurately measure situation awareness (SA) are important when designing systems that optimize operator performance. The two most prominent SA probe techniques vary based on screen visibility and situation pause during question presentation. The current study used four probe techniques based on all possible configurations of these factors. Air traffic control students controlled traffic in 10 scenarios that included all four probe techniques and a baseline no-probe condition across two degrees of automation. Probe questions varied on two levels of priority and specificity, creating four question types. Based on operator performance variations and subjective ratings, results support administration of probes with a visible screen and while the situation is paused. No method showed superior sensitivity to SA differences. Finally, the current study replicated findings that low priority information is offloaded to the environment and accessed as needed, supporting the situated approach towards SA.
|Commitee:||Strybel, Thomas Z., Vu, Kim-Phuong L.|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 53/01M(E), Masters Abstracts International|
|Subjects:||Experimental psychology, Cognitive psychology|
|Keywords:||NextGen, Situation awareness|
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