Validity of Selection/ Classification Variables for Performance in Three Navy Ratings

This study examined speed of advancement and score on a job knowledge test as job performance criteria in the validation of selection and classification variables for three Navy ratings. Longitudinal samples spanning a 4-year period were drawn for men in radioman, machinist's mate, and hospital corpsman ratings who, within their first enlistment, advanced to E-4 by means of the Navy competitive advancement system. Validity coefficients for Navy enlisted selection and classification variables (Armed Services Vocational Aptitude Battery [ASVAB] and education) were computed for personnel in each rating, subgrouped by entry pay grade. Validity coefficients for the job knowledge test were high by historical standards, and the effects were highest for the subgroups with the highest selection standards. Validity coefficients for the advancement criterion were much lower. Advancement, the criterion that appeared to have the greater face validity, was not as good a measure of job performance as the job knowledge test. The criteria were predicted much better by mental ability than by level of education variables. Personnel who enlisted at E-2 and E-3 pay grades spent substantially more time working at the journeyman performance level during their first enlistment than did personnel who enlisted at E-1.