Validities of Unit-Weighted Composites of the ASVAB and the ECAT Battery

Currently, assignment to training in each entry-level enlisted job in the U.S. military is influenced by examinees’ scores on the classification composite for that job from the Armed Services Vocational Aptitude Battery (ASVAB). For a cross-service sample of the 18 occupations in the Enhanced Computer-Administered Test (ECAT) project, enhancements of their respective operational ASVAB composites (9 unique ones) are evaluated here. Analyses are reported on the gains in validity from adding 1 test with unit weight to each composite, the addition coming either from the other ASVAB tests or from the 9 tests of the ECAT battery. In more than half the schools, the best ASVAB additions were Coding Speed or Mechanical Comprehension. In the ECAT battery, 1 test of psychomotor ability (Two-Hand Tracking) and 2 tests of working memory (Mental Counters and Sequential Memory) were the most promising additions. The utility of the new composites for person–job matching is discussed.