“…This involvement of experts could be through empirical assessment during real or simulated operations, but such approaches are expensive and time-consuming, especially when involving many subjects. Alternately, interviews and other consultation with submariners provide insight into their cognitive approach (Kirschenbaum, 1992;Soldow 1998), but often, people do not have conscious access to their own underlying mental organization and cannot articulate rules for their behavior (Ashby & Maddox, 1992, 1993, particularly as seen in a submarine navigation, (Sun, Merrill, & Peterson, 2001). Talk-aloud protocols (i.e., verbalizing while going through actions) can be more revealing than direct interview, but they have limitations as well, especially in combining data across many subjects.…”