“Independent study that confirmed the test-retest reliability of DANA between assessments performed by the same subjects in different environmental conditions. Methods: 16 male active-duty U.S. Navy Experimental Diving Unit personnel were administered DANA 4 times: once in a baseline, thermoneutral environment, and then 3 additional times in simulated, operationally-relevant environments for exposure to cold, heat and humidity. Results: DANA had high test-retest reliability between assessments performed by the same subjects in different environmental conditions. Practice/Learned Effects: There were no significant differences in performance within each simulated environmental condition associated with repeated administrations (i.e., practice effects).”