Direct Measurement of Situation Awareness: Validity and Use of SAGAT
The Situation Awareness Global Assessment Technique (SAGAT) is a global tool developed to assess SA across all of its elements based on a comprehensive assessment of operator SA requirements. SAGAT queries allow for detailed information about subject SA to be collected on an element by element basis that can be evaluated against reality, thus providing an objective assessment of operator SA. In Mica Endsley and Mark Rodgers, people found that the percentage of aircraft reported by experienced controllers via SAGAT significantly decreased with increases in the number of aircraft in an air traffic control simulation. Based on the goal-directed task analysis, a list of the SA requirements for a domain can be constructed either as a whole or for particular operator goals and subgoals. The SAGAT technique has thus far been shown to have a high degree of validity, sensitivity, and reliability for measuring SA.