The Enhanced Computer-Administered Test (ECAT) battery was selected by a Joint-Services panel of testing experts tasked with finding computerized tests that were likely to increase validity when added to the Armed Services Vocational Aptitude Battery (ASVAB). The tests are described in this article and illustrated with sample items. Factor analysis of the ASVAB and ECAT battery showed that, although there is considerable overlap between the batteries, the ECAT battery measures 3 ability factors beyond those measured by the ASVAB: Working Memory, Spatial Ability, and Psychomotor Ability.