This project investigated the alternate forms reliability of the Armed Services Vocational Aptitude Battery ASVAB Forms 8, 9, 10, and 11. High internal consistency reliability coefficients had been previously obtained and reported however, coefficients of equivalence had not been studied. The direct calculation of parallel forms reliability was precluded therefore, the alternate forms reliability coefficients of Form 11a with Forms 9a, 9b, 10a, and 10b were calculated. Then the alternate forms reliability coefficients of Form 8a with Forms 9a, 9b, 10a, and 10b were calculated. Alternate forms reliability of Form 11a with Form 8a was inferred. High reliability coefficients were expected, and this expectation was substantiated. Keywords Aptitude testing Personnel selection Classification Enlisted personnel.