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Validity of the Airman Classificatiion Battery AC-1

Report Number: HRRC RB 50-3
Author: Gragg, Donald B.
Author: Gordon, Mary Agnes
Corporate Author: Human Resources Research Center
Laboratory: Directorate of Personnel Research
Date of Publication: 1950-12
Pages: 266
Contract: Laboratory Research - No Contract
Project: 21-03-012
AD Number: ADF760077

The Airman Classification Battery was constructed to replace the AGO tests (AGCT and AG-MA-2) as an instrument for classification of airmen. The present bulletin is designed to present additional validation and analysis data for the ACB. The Airman Classification Battery, AC-1A, was introduced operationally on 15 Nov 48. It consisted of 12 tests and a biographical inventory having 6 keys. On 6 Dec 49 minor revisions were effected and the battery changed to Battery AC-1B, consisting of 13 tests and a biographical inventory with 7 keys. Eight aptitude indices, derived from various weighted tests and BI scores, are used to predict success in training for, and proficiency in, the AF specialties grouped by career fields under the corresponding eight job families or aptitude clusters. The tests are administered in a standard order and processed by carefully selected, assigned, and trained airmen who in turn are supervised by experienced non-commissioned officers and professional psychologists - both military and civilian. Controlled conditions of test administration and processing are carefully maintained by a system of exhaustive checking, statistical control, auditing for reasonableness, and review. The ACB was developed upon the rationale of differential classification, which implies that each job or group of jobs requires a different pattern of aptitudes. The prediction of success in each of these jobs or groups of jobs requires the use of many tests which can be combined into weighted composites, depending upon their intercorrelations and correlations with the criteria of success on the job.

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