Objective, easy to use, easy to comprehend, high face-validity assessment methods for measuring shared awareness in teams are hard to find. This paper describes an experiment where a new measure called Shared Priorities, which is based on ranking of self-generated strategic items, is tested. Trained teams were compared to non-trained teams in a dynamic problem-solving task in terms of performance and shared awareness. The shared priorities measure was used alongside other, well-documented measures of team awareness based on self-rating. The results show that the Shared Priorities measure correlate with performance and could also distinguish between trained and non-trained teams. However, the Shared Priorities measure did not correlate with the other team measures, suggesting that it captures a different quality of team work than the self-rating measures. Further, the shared priorities measure was found to be easily administered and gained a high user acceptance.