The Institute of Personality Assessment and Research carried out an extensive psychological assessment of a group of 100 Air Force captains in order to develop a set of procedures which would identify those officers most likely to be effective in command and staff positions. This particular study presents data collected from 10 perceptual tests included in the program. Developmental material is presented for some of the tests. The purpose of this report is to show the potential contribution of such perceptual behavior to the assessment and understanding of personality. Stress is upon the perceptual performance of the military officer rated effective. Results indicate that the perceptual tests are most strongly related to the areas of intellect and cognitive flexibility. Numerous significant relationships were found with tests in the areas of emotional adjustment, social relations, and leadership. The specific nature and direction of the relationships between perceptual and personality measures are consistent with the assumption that basic personality trends are general in nature and should manifest themselves in analogous ways in perceptual and other forms of behavior.