Army Classification Battery (ACB): Post-WWII Army battery

About the Army Classification Battery (ACB)

By the end of WWII, the AGCT had been administered to 12 million US service members but its limitations had become apparent. A single overall score was insufficient for the increasingly specialized military occupations - submarine sonarmen, radar technicians, intelligence analysts, and many other roles required specific cognitive aptitudes that the AGCT did not separately measure.

The Army Classification Battery (ACB), introduced in 1947, addressed this. It had multiple aptitude composites: Verbal (VE), Arithmetic Reasoning (AR), Pattern Analysis (PA), Mechanical Aptitude (MA), Clerical Speed (CS), Electronics (EL), and others. Each composite combined several individual subtest scores. The composites allowed Army personnel officers to match recruits to specific military occupational specialties rather than just rank them on a single intelligence dimension.

The ACB methodology was the direct foundation of the modern ASVAB (Armed Services Vocational Aptitude Battery), introduced in 1968 and still in use today across all US military services. About 700,000 ASVAB administrations occur annually. The ACB and ASVAB approach - multiple aptitude composites for occupational placement - has also influenced civilian career assessments and most modern multi-aptitude batteries.

The 6 subtests

Source

All test materials and historical content on this page are transcribed from:

The ACB items were classified during military use; only procedural documents are public. The methodology is described in various US Army technical manuals from the late 1940s and early 1950s.